Title :
Modeling transient gain dynamics in a cladding-pumped Yb-doped fiber amplifier pulsed at low repetition rates
Author :
Valley, G.C. ; Wright, M.
Author_Institution :
Aerosp. Corp., Los Angeles, CA, USA
Abstract :
Summary form only given. For deep space optical communication links, high peak-power laser sources with repetition rates less than 100 kHz are required. A potential candidate is the high power, cladding-pumped, Yb-doped fiber amplifier (YDFA) with a pulse-position-modulated seed oscillator. A device developed under contract by IPG Photonics met the requirements of almost 10 kW peak power with pulsewidths less than 30 ns at 3.5 kHz. However, at higher repetition rates (20 to 50 kHz), nearly flat pulses with peak power less than 1 kW were obtained. To understand and optimize this behavior, we have simulated the performance of a pulsed YDFA.
Keywords :
optical fibre amplifiers; optical fibre cladding; optical modulation; optical pumping; optical transmitters; pulse position modulation; space communication links; transient analysis; ytterbium; 1 kW; 10 kW; 100 kHz; 20 to 50 kHz; 3.5 kHz; 30 ns; YDFA; Yb-doped fiber amplifier; cladding-pumped Yb-doped fiber amplifier; deep space optical communication links; flat pulses; laser source peak-power; low repetition rate pulsed fiber amplifier; position-modulated seed oscillator; pulsed YDFA performance simulation; pulsewidth; repetition rate; transient gain dynamics modeling; Contracts; Fiber lasers; High power amplifiers; Laser modes; Optical fiber amplifiers; Optical fiber communication; Optical fiber devices; Optical pulses; Oscillators; Pulse amplifiers;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.947834
