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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 17496–17502

Distributed feedback laser diode integrated with distributed Bragg reflector for continuous-wave terahertz generation

Namje Kim, Sang-Pil Han, Han-Cheol Ryu, Hyunsung Ko, Jeong-Woo Park, Donghun Lee, Min Yong Jeon, and Kyung Hyun Park  »View Author Affiliations


Optics Express, Vol. 20, Issue 16, pp. 17496-17502 (2012)
http://dx.doi.org/10.1364/OE.20.017496


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Abstract

A widely tunable dual mode laser diode with a single cavity structure is demonstrated. This novel device consists of a distributed feedback (DFB) laser diode and distributed Bragg reflector (DBR). Micro-heaters are integrated on the top of each section for continuous and independent wavelength tuning of each mode. By using a single gain medium in the DFB section, an effective common optical cavity and common modes are realized. The laser diode shows a wide tunability of the optical beat frequency, from 0.48 THz to over 2.36 THz. Continuous wave THz radiation is also successfully generated with low-temperature grown InGaAs photomixers from 0.48 GHz to 1.5 THz.

© 2012 OSA

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(140.5960) Lasers and laser optics : Semiconductor lasers
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 1, 2012
Revised Manuscript: July 11, 2012
Manuscript Accepted: July 11, 2012
Published: July 17, 2012

Citation
Namje Kim, Sang-Pil Han, Han-Cheol Ryu, Hyunsung Ko, Jeong-Woo Park, Donghun Lee, Min Yong Jeon, and Kyung Hyun Park, "Distributed feedback laser diode integrated with distributed Bragg reflector for continuous-wave terahertz generation," Opt. Express 20, 17496-17502 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-16-17496


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