Effective suppression of beam divergence for a high-power laser diode bar by an external-cavity technique
Optics Letters, Vol. 29, Issue 4, pp. 361-363 (2004)
http://dx.doi.org/10.1364/OL.29.000361
Acrobat PDF (432 KB)
Abstract
We describe effective suppression of beam divergence for a high-power laser diode bar by use of an external-cavity technique. Nineteen off-axis external-cavity laser diodes of the high-power laser diode are formed by feedback with a stripe mirror. At three times the threshold current, the diverging angle (1/e2) of the external-cavity laser diode bar is reduced to 1.5° from 6.6° (free running) with 14.1-W peak output power and 70.4% of the radiated power of the free-running state without the external cavity. This technique effectively improves the beam quality of the high-power laser diode bar.
© 2004 Optical Society of America
OCIS Codes
(140.2010) Lasers and laser optics : Diode laser arrays
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3410) Lasers and laser optics : Laser resonators
(140.5960) Lasers and laser optics : Semiconductor lasers
Citation
Xin Gao, Yujin Zheng, Hirofumi Kan, and Kazunori Shinoda, "Effective suppression of beam divergence for a high-power laser diode bar by an external-cavity technique," Opt. Lett. 29, 361-363 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-4-361
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Spectral beam combining of a broad-stripe diode laser array in an external cavity (OL)
- Simple diode pumping of a power-buildup cavity. (OL)
- Observation of Stable Cylindrical Modes in Electrically Pumped Circular Grating-Coupled Surface-Emitting Lasers (AO)
- Design considerations for high-brightness diffractive broad-area lasers (JOSAB)
- Near-diffraction-limited diode laser arrays by wavelength beam combining (OL)
Related Conference Papers
- Novel Stable Resonator Concept for Efficient Axisymmetric Output from Lasers with a Planar Gain Medium
- High-Brightness Wavelength-Beam-Combined Diode Laser Stacks Using a Volume Bragg Grating (VBG)
- High Efficient and Reliable 10 mm Diode Laser Bars at 940nm
- High Efficient and Reliable 10 mm Diode Laser Bars at 940nm
- High-Power Near-Diffraction-Limited Wavelength-Beam-Combined Diode Arrays
« Previous Article | Next Article »
OSA is a member of 