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DOP‐tunable semiconductor fiber ring laser
Author(s) -
Fang Nian,
Wang LuTang,
Huang ZhaoMing
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24403
Subject(s) - polarization controller , materials science , semiconductor , optics , optoelectronics , laser , beam splitter , polarization (electrochemistry) , fiber laser , microwave , optical amplifier , ring laser , physics , telecommunications , engineering , chemistry
A novel laser with tunable and stable degree of polarization (DOP) is introduced. It consists of a polarization beam splitter (PBS) and a bidirectional semiconductor fiber ring, which is composed of a semiconductor optical amplifier (SOA), a polarization controller (PC) and a 2 × 2 wideband fiber coupler. By adjusting the PC or the injected current of the SOA, the time averaged DOP of the laser output varies optionally from 0.16 to 99%. Employing the bidirectional ring structure and PBS polarization combination method, DOP of the laser can be kept stable at any level in that range. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1669–1671, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24403