Open AccessUltra-narrow linewidth full C-band tunable single-frequency linear-polarization fiber laser
Author(s) -
Yuning Zhang,
Qilai Zhao,
Can Li,
Changsheng Yang,
Zhouming Feng,
Huaqiu Deng,
Enbo Zhou,
Shanhui Xu,
Kenneth K. Y. Wong,
Zhongmin Yang
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.026209
Subject(s) - laser linewidth , optics , relative intensity noise , materials science , fiber laser , laser , extinction ratio , amplitude modulation , linear polarization , phase noise , wavelength , frequency modulation , physics , semiconductor laser theory , optoelectronics , bandwidth (computing) , telecommunications , computer science
An ultra-narrow linewidth full C-band tunable single-frequency linear-polarization fiber laser based on self-injection locking has been demonstrated. By the use of a tunable narrow-band fiber Fabry-Perot interferometer, the laser wavelength could be flexibly tuned from 1527 to 1563 nm with linewidths of < 700 Hz. The laser frequency noise is less than 40 dB re Hz/Hz 1/2 at low frequencies (< 100 Hz) and reaches -5 dB re Hz/Hz 1/2 at around 25 kHz. The measured relative intensity noise (RIN) is less than -130 dB/Hz with regard to frequencies of over 3 MHz, while the obtained linear polarization extinction ratio (LPER) is higher than 28 dB. This ultra-narrow linewidth low-noise tunable single-frequency linear-polarization fiber laser provides a promising candidate for high-order quadrature amplitude modulation (QAM) optical communication system.