OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 8 — Aug. 1, 2007
  • pp: 1707–1715

Beam combining of ytterbium fiber amplifiers (Invited)

Steven J. Augst, Jinendra K. Ranka, T. Y. Fan, and Antonio Sanchez  »View Author Affiliations


JOSA B, Vol. 24, Issue 8, pp. 1707-1715 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001707


View Full Text Article

Enhanced HTML    Acrobat PDF (466 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Fiber lasers are well suited to scaling to high average power using beam-combining techniques. For coherent combining, optical phase-noise characterization of a ytterbium fiber amplifier is required to perform a critical evaluation of various approaches to coherent combining. For wavelength beam combining, we demonstrate good beam quality from the combination of three fiber amplifiers, and we discuss system scaling and design trades between laser linewidth, beam width, grating dispersion, and beam quality.

© 2007 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3290) Lasers and laser optics : Laser arrays
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Lasers and Amplifiers

History
Original Manuscript: November 2, 2006
Manuscript Accepted: January 7, 2007
Published: July 19, 2007

Citation
Steven J. Augst, Jinendra K. Ranka, T. Y. Fan, and Antonio Sanchez, "Beam combining of ytterbium fiber amplifiers (Invited)," J. Opt. Soc. Am. B 24, 1707-1715 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-8-1707


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. T. Y. Fan, "Laser beam combining for high-power, high-radiance sources," IEEE J. Sel. Top. Quantum Electron. 11, 567-577 (2005). [CrossRef]
  2. J. R. Leger, "External methods of phase locking and coherent beam addition of diode lasers," in Surface Emitting Semiconductor Lasers and Arrays, G.A.Evans and J.M.Hammer, eds. (Academic, 1993), pp. 379-433.
  3. S. R. Chinn, "Review of edge-emitting coherent laser arrays," in Surface Emitting Semiconductor Lasers and Arrays, G.A.Evans and J.M.Hammer, eds. (Academic, 1993), pp. 9-70.
  4. J. R. Leger, M. Holz, G. J. Swanson, and W. Veldkamp, "Coherent beam addition: an application of binary optics," Lincoln Lab. J. 1, 225-245 (1988).
  5. F. Glova, "Phase locking of optically coupled lasers," Quantum Electron. 33, 283-306 (2003). [CrossRef]
  6. D. Botez, "Monolithic phase-locked semiconductor laser arrays," in Diode Laser Arrays, D.Botez and D.R.Scrifres, eds. (Cambridge U. Press, 1994), pp. 1-67. [CrossRef]
  7. D. F. Welch and D. G. Mehuys, "High-power coherent, semiconductor laser, master oscillator power amplifiers and amplifier arrays," in Diode Laser Arrays, D.Botez and D.R.Scrifres, eds. (Cambridge U. Press, 1994), pp. 72-122. [CrossRef]
  8. S. Goldobin, N. N. Evtikhiev, A. G. Plyavenek, and S. D. Yakubovich, "Phase-locked integrated arrays of injection lasers," Sov. J. Quantum Electron. 19, 1261-1284 (1989). [CrossRef]
  9. L. Li, A. Schülzgen, S. Chen, V. L. Temyanko, J. V. Moloney, and N. Peyghambarian, "Phase locking and in-phase supermode selection in monolithic multicore fiber lasers," Opt. Lett. 31, 2577-2579 (2006). [CrossRef] [PubMed]
  10. L. Michaille, C. R. Bennett, D. M. Taylor, and T. J. Shepherd, "Multi-core photonic crystal fibers for high power lasers and amplifiers," in Fiber Lasers III: Technology, Systems, and Applications, A.J. W.Brown, J.Nilsson, D.J.Harter, and A.Tünnermann, eds., Proc. SPIE 6102, 61020W (2006).
  11. G. Youmans, "Phase locking of adjacent channel leaky waveguide CO2 lasers," Appl. Phys. Lett. 44, 365-367 (1984). [CrossRef]
  12. R. Scifres, R. D. Burnham, and W. Streifer, "Phase-locked semiconductor laser array," Appl. Phys. Lett. 33, 1015-1017 (1978). [CrossRef]
  13. L. J. Mawst, D. Botez, C. Zmudzinski, M. Jansen, C. Tu, T. J. Roth, and J. Yun, "Resonant self-aligned-stripe antiguided diode laser array," Appl. Phys. Lett. 60, 668-670 (1992). [CrossRef]
  14. M. Oka, H. Masuda, Y. Kaneda, and S. Kubota, "Laser-diode-pumped phase-locked Nd:YAG laser arrays," IEEE J. Quantum Electron. 28, 1142-1147 (1992). [CrossRef]
  15. S. Saunders, R. Waarts, D. Nam, D. Welch, D. Scifres, J. C. Ehlert, W. J. Cassarly, J. M. Finlan, and K. M. Flood, "High power coherent two-dimensional semiconductor laser array," Appl. Phys. Lett. 64, 1478-1480 (1994). [CrossRef]
  16. S. Menard, M. Vampouille, A. Desfarges-Berthelemot, V. Kermene, B. Colombeau, and C. Froehly, "Highly efficient phase locking of four diode pumped Nd:YAG laser beams," Opt. Commun. 160, 344-353 (1999). [CrossRef]
  17. V. Eckhouse, A. A. Ishaaya, L. Shimshi, N. Davidson, and A. A. Friesem, "Intracavity coherent addition of 16 laser distributions," Opt. Lett. 31, 350-352 (2006). [CrossRef] [PubMed]
  18. C. J. Corcoran and K. A. Pasch, "Self-Fourier functions and coherent laser combination," J. Phys. A 37, L461-L469 (2004). [CrossRef]
  19. L. Liu, Y. Zhou, F. Kong, and Y. C. Chen, "Phase locking in a fiber laser array with varying path lengths," Appl. Phys. Lett. 85, 4837-4839 (2004). [CrossRef]
  20. B. He, Q. Lou, J. Zhou, D. Xue, J. Dong, Y. Wei, Y. Zheng, Y. Qi, and Z. Wang, "Phase-locking of two large-core fiber lasers with 60 W of coherent output power," J. Opt. A, Pure Appl. Opt. 8, 759-762 (2006). [CrossRef]
  21. E. M. Philipp-Rutz, "Spatially coherent radiation from an array of GaAs lasers," Appl. Phys. Lett. 26, 475-477 (1975). [CrossRef]
  22. J. R. Leger, M. L. Scott, and W. B. Veldkamp, "Coherent addition of AlGaAs lasers using microlenses and diffractive coupling," Appl. Phys. Lett. 52, 1771-1773 (1988). [CrossRef]
  23. J. R. Leger, G. J. Swanson, and W. B. Veldkamp, "Coherent laser addition using binary phase gratings," Appl. Opt. 26, 4391-4399 (1987). [CrossRef] [PubMed]
  24. J. Corcoran and R. H. Rediker, "Operation of five individual diode lasers as a coherent ensemble by fiber coupling into an external cavity," Appl. Phys. Lett. 59, 759-761 (1991). [CrossRef]
  25. Y. Kono, M. Takeoka, K. Uto, A. Uchida, and F. Kannari, "A coherent all-solid-state laser array using the Talbot effect in a three-mirror cavity," IEEE J. Quantum Electron. 36, 607-614 (2000). [CrossRef]
  26. F. Glova, Yu. A. Dreizin, O. R. Kachurin, F. V. Lebedev, and V. D. Pis'mennyi, "Phase locking of a two-dimensional array of CO2 waveguide lasers," Sov. Tech. Phys. Lett. 11, 102-103 (1985).
  27. L. A. Newman, R. A. Hart, J. T. Kennedy, A. J. Cantor, A. J. DeMaria, and W. B. Bridges, "High power coupled CO2 waveguide laser array," Appl. Phys. Lett. 48, 1701-1703 (1986). [CrossRef]
  28. O. R. Kachurin, F. V. Lebedev, and A. P. Napartovich, "Properties of an array of phase-locked CO2 lasers," Sov. J. Quantum Electron. 15, 1128-1131 (1988). [CrossRef]
  29. V. V. Vasil'tsov, V. S. Golubev, Ye. V. Zelenov, Ye. A. Kurushin, and D. Yu. Filimonov, "Using diffraction optics for formation single-lobe far-field beam intensity distribution in waveguide CO2-lasers synchronized arrays," in CIS Selected Papers: High-Power Multibeam Lasers and Their Phase Locking, F.V.Lebedev and A.N.Napartovich, eds., Proc. SPIE 2109, 122-128 (1993).
  30. M. DiDomenico, Jr., "Characteristics of a single-frequency Michelson-type He-Ne gas laser," IEEE J. Quantum Electron. QE-2, 311-322 (1966). [CrossRef]
  31. P. W. Smith, "Mode selection in lasers," Proc. IEEE 60, 422-440 (1972). [CrossRef]
  32. A. Shirakawa, T. Saitou, T. Sekiguchi, and K. Ueda, "Coherent addition of fiber lasers by use of a fiber coupler," Opt. Express 10, 1167-1172 (2002). [PubMed]
  33. D. Sabourdy, V. Kermene, A. Desgarges-Berthelemont, L. Lefort, A. Barthélémy, C. Mahodaux, and D. Pureru, "Power scaling of fiber lasers with all-fiber interferometric cavity," Electron. Lett. 38, 692-693 (2002). [CrossRef]
  34. M. L. Minden, H. Bruesselbach, J. L. Rogers, M. S. Mangir, D. C. Jones, G. J. Dunning, D. L. Hammon, A. J. Solis, and L. Vaughan, in Fiber Lasers: Technology, Systems, and Applications, L.N.Darvasula, ed., "Self-organized coherence in fiber laser arrays," Proc. SPIE 5335, 89-97 (2004).
  35. A. Shirakawa, K. Matsuo, and K. Ueda, "Power summation and bandwidth narrowing in coherently-coupled fiber laser array," in Proceedings of the Conference on Lasers and Electro-optics (Optical Society of America, 2004), paper CTHGG2.
  36. L. Liu, Y. Zhou, F. Kong, and Y. C. Chen, "Phase locking in a fiber laser array with varying path lengths," Appl. Phys. Lett. 85, 4837-4839 (2004). [CrossRef]
  37. A. Ishaaya, N. Davidson, L. Shimshi, and A. A. Friesem, "Intracavity coherent addition of Gaussian beam distributions using a planar interferometric coupler," Appl. Phys. Lett. 85, 2187-2189 (2004). [CrossRef]
  38. A. Ishaaya, L. Shimshi, N. Davidson, and A. A. Freisem, "Coherent addition of spatially incoherent light beams," Opt. Express 12, 4929-4934 (2004). [CrossRef] [PubMed]
  39. V. I. Kovalev and R. G. Harrison, "Coherent beam combining of fiber amplifier array output through spectral self-phase conjugation via SBS," in Fiber Lasers III: Technology, Systems, and Applications, A.J. W.Brown, J.Nilsson, D.J.Harter, and A.Tünnermann, eds., Proc. SPIE 6102, 61021B (2006).
  40. N. G. Basov, V. F. Efmkov, I. G. Zubarev, A. V. Kotov, A. B. Mironov, S. I. Mikhailov, and M. J. Smimov, "Influence of certain radiation parameters on wavefront reversal of a pump wave in a Brillouin mirror," Sov. J. Quantum Electron. 9, 455-458 (1979). [CrossRef]
  41. N. G. Basov, V. F. Efmkov, I. G. Zubarev, A. V. Kotov, and S. I. Mikhailov, "Control of the characteristics of reversing mirrors in the amplification regime," Sov. J. Quantum Electron. 11, 1335-1337 (1981). [CrossRef]
  42. D. L. Carroll, R. Johnson, S. J. Pfeifer, and R. H. Moyer, "Experimental investigations of stimulated Brillouin-scattering beam combination," J. Opt. Soc. Am. B 9, 2214-2224 (1992). [CrossRef]
  43. H. J. Kong, J. Y. Lee, Y. S. Shin, J. O. Byun, H. S. Park, and H. Kim, "Beam recombination characteristics in array laser amplification using stimulated Brillouin scattering phase conjugation," Opt. Rev. 4, 277-283 (1997). [CrossRef]
  44. C. Rodgers, T. H. Russell, and W. B. Roh, "Laser beam combining and cleanup by stimulated Brillouin scattering in a multimode optical fiber," Opt. Lett. 16, 1124-1126 (1999). [CrossRef]
  45. A. F. Vasil'ev, A. A. Mak, V. Mit'kin, V. A. Serebryakov, and V. E. Yashin, "Correction of thermally induced optical aberrations and coherent phasing of beams during stimulated Brillouin scattering," Sov. Phys. Tech. Phys. 31, 191-193 (1986).
  46. A. Rockwell and C. R. Giuliano, "Coherent coupling of laser gain media using phase conjugation," Opt. Lett. 11, 147-149 (1986). [CrossRef] [PubMed]
  47. K. V. Gratsianov, A. F. Komev, V. V. Lyubimov, A. A. Mak, V. G. Pankov, and A. I. Stepanov, "Investigation of an amplifier with a composite active element and a stimulated Brillouin scattering mirror," Sov. J. Quantum Electron. 16, 1544-1546 (1986). [CrossRef]
  48. V. M. Leont'ev, V. G. Novoselov, Yu. P. Rudnitskii, and I. V. Chemyshava, "Solid-state laser with a composite active element and diffraction-limit divergence," Sov. J. Quantum Electron. 17, 220-223 (1987). [CrossRef]
  49. K. V. Gratsianov, A. F. Komev, V. V. Lyubimov, and V. G. Pankov,"Laser beam phasing with phase conjugation in Brillouin scattering," Opt. Spectrosc. 68, 360-361 (1990).
  50. F. Vasli'ev, S. B. Gladin, and V. E. Yashin, "Pulses-periodic Nd:YAlO3 laser with a phase-locked aperture under conditions of phase conjugation by stimulated Brillouin scattering," Sov. J. Quantum Electron. 21, 494-497 (1991). [CrossRef]
  51. S. Sumida, D. C. Jones, and D. A. Rockwell, "An 8.2 J phase-conjugate solid-state laser coherently combining eight parallel amplifiers," IEEE J. Quantum Electron. 30, 2617-2627 (1994). [CrossRef]
  52. R. H. Moyer, M. Valley, and M. Cimolino, "Beam combination through stimulated Brillouin scattering," J. Opt. Soc. Am. B 5, 2473-2489 (1988). [CrossRef]
  53. M. H. Smith, D. W. Trainor, and C. Duzy, "Shallow angle beam combining using a broad band XeF laser," IEEE J. Quantum Electron. 26, 942-949 (1990). [CrossRef]
  54. T. H. Russell, S. M. Willis, M. B. Crookston, and W. B. Roh, "Stimulated Raman scattering in multimode fibers and its application to beam cleanup and combining," J. Nonlinear Opt. Phys. Mater. 11, 303-316 (2002). [CrossRef]
  55. S. J. Augst, T. Y. Fan, and A. Sanchez, "Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers," Opt. Lett. 29, 474-476 (2004). [CrossRef] [PubMed]
  56. D. C. Jones, A. M. Scott, S. Clark, C. Stace, and R. G. Clarke, "Beam steering of a fiber bundle laser output using phased array techniques," in Fiber Lasers: Technology, Systems, and Applications, L.N.Durvasula, ed., Proc. SPIE 5335, 125-131 (2004).
  57. M. Wickham, J. Anderegg, S. Brosnan, E. Cheung, P. Epp, D. Hammons, H. Komine, and M. Weber, "Coherently coupled high power fiber arrays," in Digest of the IEEE-LEOS Summer Topical Meetings (IEEE, 2006), pp. 23-24. [CrossRef]
  58. G. D. Goodno, H. Komine, S. J. McNaught, S. B. Weiss, S. Redmond, W. Long, R. Simpson, E. C. Cheung, D. Howland, P. Epp, M. Weber, M. McClellan, J. Sollee, and H. Injeyan, "Coherent combination of high-power, zigzag slab lasers," Opt. Lett. 31, 1247-1249 (2006). [CrossRef] [PubMed]
  59. J. Anderegg, S. Brosnan, E. Cheung, P. Epp, D. Hammons, H. Komine, M. Weber, and M. Wickham, "Coherently coupled high power fiber arrays," in Fiber Lasers III: Technology, Systems, and Applications, A.J. W.Brown, J.Nilsson, D.J.Harter, and A.Tünnermann, eds., Proc. SPIE 6102, 61020U (2006).
  60. T. M. Shay, V. Benham, J. Spring, B. Ward, F. Ghebremichael, M. A. Culpepper, A. D. Sanchez, J. T. Baker, D. Pilkington, and R. Berdine, "Self-referenced locking of optical coherence by single-detector electronic-frequency tagging," in Fiber Lasers III: Technology, Systems, and Applications, A.J. W.Brown, J.Nilsson, D.J.Harter, and A.Tünnermann, eds., Proc. SPIE 6102, 61020V (2006).
  61. M. Tröbs, P. Weßels, and C. Fallnich, "Power- and frequency-noise characteristics of an Yb-doped fiber amplifier and actuators for stabilization," Opt. Express 13, 2224-2235 (2005). [CrossRef] [PubMed]
  62. J. Hou, R. Xiao, Z. F. Jiang, X. A. Cheng, B. H. Shu, J. B. Chen, and Z. J. Liu, "Coherent beam combination of two polarization maintaining ytterbium fibre amplifiers," Chin. Phys. Lett. 22, 2273-2275 (2005). [CrossRef]
  63. K. H. No, R. W. Herrick, C. Leung, R. Reinhart, and J. L. Levy, "One-dimensional scaling of 100 ridge waveguide amplifiers," IEEE Photon. Technol. Lett. 6, 1062-1066 (1994). [CrossRef]
  64. K. H. No, R. W. Herrick, C. Leung, R. Rhinehart, and J. L. Levy, "Two-dimensional scaling of ridge waveguide amplifiers," in Laser Diode Technology and Applications VI, P.C.Chen, L.A.Johnson, and H.Temkin, eds., Proc. SPIE 2148, 80-90 (1994).
  65. J. S. Osinski, D. Mehuys, D. F. Welch, R. G. Waarts, J. S. Major, K. M. Dzurko, and R. J. Lang, "Phased array of high-power, coherent, monolithic flared amplifier master oscillator power amplifiers," Appl. Phys. Lett. 66, 556-558 (1995). [CrossRef]
  66. L. Bartelt-Berger, U. Brauch, A. Giesen, and H. Opower, "Power-scalable system of phase-locked single-mode diode lasers," 38, 5752-5760 (1999).
  67. J. Anderegg, S. Brosnan, M. Weber, H. Komine, and M. Wickham, "8-W coherently phased 4-element fiber array," in Advances in Fiber Lasers, L.N.Durvasula, ed., Proc. SPIE 4974, 1-6 (2003).
  68. IPG Photonics YAR-30K-1065-LP polarized Yb fiber amplifier with ∼40 dB of gain and 30 W saturated output at gain center.
  69. A. Sanchez-Rubio and T. Y. Fan, "Beam combining of diode laser array elements for high brightness and power," U.S. Patent 6,192,062 (February 20, 2001).
  70. C. C. Cook and T. Y. Fan, "Spectral beam combining of Yb-doped fiber lasers in an external cavity," in Advanced Solid State Lasers, Vol. 26 of OSA Trends in Optics and Photonics Series, M.M.Fejer, H.Injeyan, andU.Keller, eds. (Optical Society of America, 1999), pp. 163-166.
  71. V. Daneu, A. Sanchez, T. Y. Fan, H. K. Choi, G. W. Turner, and C. C. Cook, "Spectral beam combining of a broad-stripe diode laser array in an external cavity," Opt. Lett. 25, 405-407 (2000). [CrossRef]
  72. S. J. Augst, A. K. Goyal, R. L. Aggarwal, T. Y. Fan, and A. Sanchez, "Wavelength beam combining of ytterbium fiber lasers," Opt. Lett. 28, 331-333 (2003). [CrossRef] [PubMed]
  73. B. Chann, R. K. Huang, L. J. Missaggia, C. T. Harris, Z. L. Liau, A. K. Goyal, J. P. Donnelly, T. Y. Fan, S. Sanchez-Rubio, and G. W. Turner, "Near-diffraction-limited diode laser arrays by wavelength beam combining," Opt. Lett. 30, 2104-2106 (2005). [CrossRef] [PubMed]
  74. B. Chann, A. K. Goyal, T. Y. Fan, A. Sanchez-Rubio, B. L. Volodin, and V. S. Ban, "Efficient, high-brightness wavelength-beam-combined commercial off-the-shelf diode stacks achieved by use of a wavelength-chirped volume Bragg grating," Opt. Lett. 31, 1253-1255 (2006). [CrossRef] [PubMed]
  75. E. J. Bochove, "Theory of spectral beam combining of fiber lasers," IEEE J. Quantum Electron. 38, 432-445 (2002). [CrossRef]
  76. P. Salet, G. Lucas-Leclin, G. Roger, P. Georges, P. Bousselet, C. Simonneau, D. Bayart, N. Michel, S. C. Auzanneau, M. Calligaro, O. Parillaud, M. Lecomte, and M. Krakowski, "Spectral beam combining of a single-mode 980-nm laser array for pumping of erbium-doped fiber amplifiers," IEEE Photon. Technol. Lett. 17, 738-740 (2005). [CrossRef]
  77. T. H. Loftus, A. Liu, P. R. Hoffman, A. Thomas, M. Norsen, C. E. Hamilton, and E. Honea, "258 W of spectrally beam combined power with near-diffraction limited beam quality," in Fiber Lasers III: Technology, Systems, and Applications, A.J. W.Brown, J.Nilsson, D.J.Harter, and A.Tünnermann, eds., Proc. SPIE 6102, 61020S (2006).
  78. F. Röser, S. Klingebiel, A. Liem, T. Schreiber, S. Höfer, J. Limpert, T. Peschel, R. Eberhardt, and A. Tünnermann, "Spectral beam combining of fiber lasers," in Fiber Lasers III: Technology, Systems, and Applications, A.J. W.Brown, J.Nilsson, D.J.Harter, and A.Tünnermann, eds., Proc. SPIE 6102, 61020T (2006).
  79. A. Liu, R. Mead, T. Vatter, A. Henderson, and R. Stafford, "Spectral beam combining of high power fiber lasers," in Fiber Lasers: Technology, Systems, and Applications, L.N.Durvasula, ed., Proc. SPIE 5335, 81-88 (2006).
  80. A. Jechow, V. Raab, and R. Menzel, "High cw power using an external cavity for spectral beam combining of diode laser-bar emission," Appl. Opt. 45, 3545-3547 (2006). [CrossRef] [PubMed]
  81. O. B. Jensen, B. Thestrup, P. E. Andersen, and P. M. Petersen, "Near-diffraction-limited segmented broad area diode laser base on off-axis spectral beam combining," Appl. Phys. B 83, 225-228 (2006). [CrossRef]
  82. C. Hamilton, S. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. Lowenthal, "High-power laser source with spectrally beam-combined diode laser bars," in High-Power Diode Laser Technology and Applications II, M.S.Zediker, ed., Proc. SPIE 5336, 1-10 (2004).
  83. W. A. Clarkson, V. Matera, T. M. J. Kendall, D. C. Hanna, J. Nilsson, and P. W. Turner, "High-power wavelength-combined cladding-pumped Tm-doped silica fiber lasers," in Conference on Lasers and Electro-optics, Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2001), pp. 363-364.
  84. M. Reich, J. Limpert, A. Liem, T. Clausnitzer, H. Zellmer, E. B. Kley, and A. Tünnermann, "Spectral beam combining of ytterbium-doped fiber lasers with a total output power of 100 W," Europhys. Conf. Abstr. 28C, Fib-10137 (2004).
  85. The dielectric grating was manufactured at Lawrence Livermore National Laboratories for use in chirped-pulse compression.
  86. D. N. Payne, Y. Jeong, J. Nilsson, J. K. Sahu, D. B. S. Soh, C. Alegria, P. Dupriez, C. A. Codemard, V. N. Philippov, V. Hernandez, R. Horley, L. Hickey, L. Wanzcyk, C. E. Chryssou, J. A. Alvarez-Chavez, and P. W. Turner, "Kilowatt-class single-frequency fiber sources," in Fiber Lasers II: Technology, Systems, and Applications, L.N.Durvasula, A.J. W.Brown, and J.Nilsson, eds., Proc. SPIE 5709, 133-141 (2004).
  87. IPG Photonics, 50 Old Webster Road, Oxford, Mass. 01540, USA (personal communication).
  88. Nufern, 7 Airport Park Road, East Granby, Conn. 06026, USA (personal communication).
  89. The grating is mounted in a near Littrow configuration. This means that the area illuminated on the grating is roughly a factor of two larger than the cross-sectional area of the laser beam.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited