Title :
Quasi-phase-matched fiber-optic parametric amplifier and gain enhancement
Author :
Kim, J. ; Lim, J.H. ; Boyraz, O. ; Islam, M.N.
Author_Institution :
Michigan Univ., Ann Arbor, MI, USA
Abstract :
Summary form only given.We enhance the gain of fiber-optic parametric amplifier (PA) by >6 dB by quasi-phase matching (QPM) the pump and signal waves. In a PA with 96 m dispersion-shifted (DS) fiber and 16 W peak pump power, we realize QPM by inserting 6 m SMF-28 fiber at 50 m point. Due to the abrupt phase change by SMF-28, the maximum gain is increased from 3.7 dB to 9.8 dB. Simulation shows that QPM causes unidirectional flow of energy from pump to signal and >13 dB gain enhancement can be obtained with three-stage QPM PA. With QPM technique, it is possible to solve the problem of low PA gain without using near-/spl lambda//sub 0/ pumping or high nonlinearity fiber.
Keywords :
optical communication equipment; optical fibre dispersion; optical parametric amplifiers; optical phase matching; optical pumping; 3.7 to 9.8 dB; abrupt phase change; dispersion-shifted fiber; fiber-optic parametric amplifier; gain enhancement; high nonlinearity fiber; maximum gain; peak pump power; pump waves; quasi-phase matching; quasi-phase-matched fiber-optic parametric amplifier; signal waves; unidirectional flow; Energy states; Fiber nonlinear optics; Nonlinear optics; Optical fiber amplifiers; Optical mixing; Optical pulses; Optical pumping; Optical scattering; Splicing; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.907022
