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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 12 — Jun. 7, 2010
  • pp: 12291–12297

Widely tunable dual-wavelength Er3+-doped fiber laser for tunable continuous-wave terahertz radiation

Min Yong Jeon, Namje Kim, Jaeheon Shin, Jong Sool Jeong, Sang-Pil Han, Chul Wook Lee, Young Ahn Leem, Dae-Su Yee, Hyang Sook Chun, and Kyung Hyun Park  »View Author Affiliations


Optics Express, Vol. 18, Issue 12, pp. 12291-12297 (2010)
http://dx.doi.org/10.1364/OE.18.012291


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Abstract

We propose a widely tunable dual-wavelength Erbium-doped fiber laser that uses two micro-heater-integrated Fabry-Perot laser diodes (FP-LDs) and two fiber Bragg gratings (FBGs) for tunable continuous-wave (CW) terahertz (THz) radiation. Each wavelength can be independently tuned by using an FP-LD and an FBG. The wavelength fine tuning is achieved by simultaneously applying current to the micro-heater on the FP-LD and strain to the FBG. The side-mode suppression ratio is more than 35 dB for both wavelengths. The wavelength spacing of the dual wavelength can be continuously tuned from 3.2 nm to 9.6 nm. Continuous frequency tuning of the CW THz radiation is also successfully achieved using an InGaAs-based photomixer with our dual-wavelength fiber laser as the optical beat source. The emitted CW THz radiation is continuously tuned from 0.3 to 0.8 THz.

© 2010 OSA

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3600) Lasers and laser optics : Lasers, tunable
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 28, 2010
Revised Manuscript: May 20, 2010
Manuscript Accepted: May 23, 2010
Published: May 25, 2010

Citation
Min Yong Jeon, Namje Kim, Jaeheon Shin, Jong Sool Jeong, Sang-Pil Han, Chul Wook Lee, Young Ahn Leem, Dae-Su Yee, Hyang Sook Chun, and Kyung Hyun Park, "Widely tunable dual-wavelength Er3+-doped fiber laser for tunable continuous-wave terahertz radiation," Opt. Express 18, 12291-12297 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-12-12291


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