Short Ring Cavity Swept Source Based on a Highly Reflective Chirped FBG  

作　　者：Radu-Florin STANCU Adrian PODOLEANU 

机构地区：[1]Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury, Kent, CT2 7NH, UK

出　　处：《Photonic Sensors》2015年第3期251-256,共6页光子传感器（英文版）

摘　　要：An optical akinetic swept source （AKSS） at 1060nm, comprising a 5m length fiber ring cavity, a semiconductor optical amplifier （SOA） as gain medium, and a 98% reflective chirped fiber Bragg grating as a dispersive element, is described. Active mode-locking was achieved by directly modulating the current of the SOA with sinusoidal signal of frequency equal to 10 times and 20 times the cavity resonance frequency. In the static regime, linewidths as narrow as 60pm and a tuning bandwidth of 30nm were achieved, while a 2roW output power, without any optical booster, was measured dynamically at a sweep speed of 100kHz. The axial range of the AKSS was evaluated by scanning through the channeled spectrum of a Mach-Zehnder interferometer.An optical akinetic swept source （AKSS） at 1060nm, comprising a 5m length fiber ring cavity, a semiconductor optical amplifier （SOA） as gain medium, and a 98% reflective chirped fiber Bragg grating as a dispersive element, is described. Active mode-locking was achieved by directly modulating the current of the SOA with sinusoidal signal of frequency equal to 10 times and 20 times the cavity resonance frequency. In the static regime, linewidths as narrow as 60pm and a tuning bandwidth of 30nm were achieved, while a 2roW output power, without any optical booster, was measured dynamically at a sweep speed of 100kHz. The axial range of the AKSS was evaluated by scanning through the channeled spectrum of a Mach-Zehnder interferometer.

关 键 词：Semiconductor optical amplifier laser mode locking ring laser dispersive element 

分 类 号：TN929.11[电子电信—通信与信息系统] TN253[电子电信—信息与通信工程]