0.98- mu m strained quantum well lasers for coupling high optical power into single-mode fiber

An investigation of epitaxial-layer structures has yielded narrow ridge waveguide structure lasers capable of coupling high optical power into single-mode fiber (SMF). An optical power of well over 60 mW in SMF was obtained for a 2- mu m-wide ridge waveguide laser with a guided separate-confinement-heterostructure (SCH) epitaxial structure. Calculated results indicate that the stringent limit imposed on 0.98- mu m wavelength detuning is relaxed for such high optical power coupled into a SMF. The 0.98- mu m strained-quantum-well lasers thus show considerable promise as a practical low-noise pumping source for Er-doped optical-fiber amplifiers.<<ETX>>

[1]  I. Nishi,et al.  Low-loss laser diode module using a molded aspheric glass lens , 1990, IEEE Photonics Technology Letters.

[2]  James J. Coleman,et al.  InGaAs-GaAs Strained Layer Quantum Well Buried Heterostructure Lasers (λ> 1 μm) by Metalorganic Chemical Vapor Deposition , 1989, Quantum Wells for Optics and Optoelectronics.

[3]  M. Okayasu,et al.  Erbium-doped fibre amplifiers with an extremely high gain coefficient of 11.0 dB/mW , 1990 .

[4]  N. Henmi,et al.  High receiver sensitivity at 10 Gb/s using an Er-doped fiber preamplifier pumped with a 0.98 mu m laser diode , 1991, IEEE Photonics Technology Letters.

[5]  N. Dinkel,et al.  980 nm diode laser for pumping Er/sup 3+/-doped fiber amplifiers , 1990, IEEE Photonics Technology Letters.

[6]  E. Desurvire,et al.  Analysis of erbium-doped fiber amplifiers pumped in the /sup 4/I/sub 15/2/-/sup 4/I/sub 13/2/ band , 1989, IEEE Photonics Technology Letters.

[7]  Paul R. Berger,et al.  Performance characteristics of GaInAs/GaAs large optical cavity quantum well lasers , 1991 .

[8]  James J. Coleman,et al.  InGaAs-GaAs strained-layer quantum well heterostructure lasers , 1990, Photonics West - Lasers and Applications in Science and Engineering.

[9]  Sadao Fujita,et al.  High receiver sensitivity at 10 Gb/s using an Er-doped fiber preamplifier pumped with a 0.98 mu m laser diode , 1991 .

[10]  P. Andrekson,et al.  A 980 nm pseudomorphic single quantum well laser for pumping erbium-doped optical fiber amplifiers , 1990, IEEE Photonics Technology Letters.

[11]  M. Shimizu,et al.  Temperature insensitive Er/sup 3+/-doped optical fibre amplifiers , 1990 .