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Proceedings Paper

A simple wavelength-locking scheme of a tunable three-electrode distributed Bragg reflector laser for multiple ITU channel application in C band
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Paper Abstract

In this paper, a simple wavelength-locking scheme for a tunable distributed Bragg reflector laser is presented. A 1*2 wide band fiber coupler as the function of beam splitter forms two optical paths with evenly separated power, one for wavelength monitoring and the other for power reference. For wavelength monitoring, two single mode fiber collimators- one as a transmitter and the other as a receiver-form a collimated light path for laser beam and a highly stable air-paced Etalon inserted between them is used as an optical frequency discriminator to lock the laser wavelengths to several ITU channels maintain 100GHz or 0.8 nm channel spacing in C band. Meanwhile, a photodetector connected with receiving collimator by a FC/PC connector turns the optical signal into electronic signal. For power reference, one of the coupler output pots is directly connected with a similar photodetector. Then wavelength shifting signal proportional to the power differences between two optical paths could be feed backed to the phase region or DBR region for stabilizing the laser output wavelength.

Paper Details

Date Published: 13 November 2010
PDF: 7 pages
Proc. SPIE 7844, Semiconductor Lasers and Applications IV, 784410 (13 November 2010); doi: 10.1117/12.870654
Show Author Affiliations
Nan Ye, Institute of Semiconductors (China)
Yang Liu, Institute of Semiconductors (China)
Ling-Juan Zhao, Institute of Semiconductors (China)


Published in SPIE Proceedings Vol. 7844:
Semiconductor Lasers and Applications IV
Ning-Hua Zhu; Jinmin Li; Farzin Amzajerdian; Hiroyuki Suzuki, Editor(s)

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