Title :
Evaluation of amplitude-stabilized optical pulse trains from rational harmonically mode-locked fiber ring lasers
Author :
Gupta, Kamal K. ; Onodera, Noriaki ; Hyodo, Masaharu ; Watanabe, Masayoshi ; Ravikumar, Jeevarathinam
Author_Institution :
Kansai Adv. Res. Center, Commun. Res. Lab., Hyogo, Japan
Abstract :
This paper investigates rational harmonically mode-locked fiber ring lasers generating amplitude-stabilized fourth-order optical pulse trains at 13.91 GHz using a modulation signal frequency of 3.477 GHz. Pulse amplitude stabilization in terms of both amplitude equality and low amplitude noise is realized by using the nonlinear characteristics of a Mach-Zehnder intensity modulator in conjunction with intracavity optical filtering. The generated optical pulse trains are investigated for their amplitude equalization, amplitude noise, supermode noise suppression, and pulse timing jitter. It is shown that the pulses remained close to transform-limited over an operating wavelength range of 1535-1565 nm.
Keywords :
fibre lasers; laser noise; laser stability; nonlinear optics; optical filters; optical modulation; optical pulse generation; ring lasers; timing jitter; 13.91 GHz; 1535 to 1565 nm; 3.477 GHz; Mach-Zehnder intensity modulator; amplitude equalization; amplitude modulation; amplitude noise; amplitude-stabilized fourth-order optical pulse trains; amplitude-stabilized optical pulse trains; intracavity optical filtering; pulse amplitude stabilization; pulse timing jitter; rational harmonically mode-locked fiber ring lasers; supermode noise suppression; Amplitude modulation; Fiber lasers; Laser mode locking; Laser noise; Noise level; Optical noise; Optical pulse generation; Optical pulses; Pulse modulation; Ring lasers; AM; Amplitude modulation; FP; Fabry–Pérot; MZM; Mach–Zehnder intensity modulator; filter; mode-locked lasers; optical fiber lasers; optical pulse generation; phase noise; ring lasers; spectral filtering;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.828217
