Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18341
Title: Narrow-linewidth tunable lasers with retro-reflective external cavity
Authors: Wang, N
Feng, M
Feng, Z
Lam, MY
Gao, L
Chen, B
Liu, AQ
Tsang, YH 
Zhang, X 
Keywords: Digital coherent communications
external cavity tunable laser
laser tuning
narrow linewidth
Issue Date: 2012
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE photonics technology letters, 2012, v. 24, no. 18, 6253231, p. 1591-1593 How to cite?
Journal: IEEE photonics technology letters 
Abstract: This letter presents the development of a fiber-pigtailed narrow-linewidth tunable laser that utilizes a retro-reflective optical system to construct the external cavity. For wavelength selection, a fixed etalon is employed to provide the International Telecommunication Union (ITU) grid with the 50-GHz spacing and a lead zirconate titanate-actuated tunable filter to select one ITU mode to resonate. The laser device measures a linewidth of 7 kHz, an output power of 14 dBm, a sidemode suppression ratio (SMSR) >f55 dB, a tuning range >40 nm, and a response speed ∼2 ms. The superior performance well demonstrates the advantages of external cavity construction for the narrow-linewidth tunable lasers and may find applications in the emerging digital coherent communications.
URI: http://hdl.handle.net/10397/18341
ISSN: 1041-1135
EISSN: 1941-0174
DOI: 10.1109/LPT.2012.2210200
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