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

fYear

2001

fDate

11-11 May 2001

Firstpage

300

Lastpage

301

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEO.2001.947834

Filename

947834