Noise characteristics of Er sup 3 + -doped fiber amplifiers pumped by 0. 98 and 1. 48. mu. m laser diodes

Journal Article · Thu Mar 01 04:00:00 EST 1990 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)

OSTI ID:7139128

Yamada, M; Shimizu, M; Horiguchi, M; Tachikawa, Y; Sugita, E ^[1]; Okayasu, M; Takeshia, T ^[2]

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1. NTT Optoelectonics Labs., Tokai-mura, Naka-gun, Ibaraki-ken (JP)
2. NTT Opto-electronics Labs., Morinosato-Wakamiya, Atsugi-shi, Kanagawa-ken (JP)

Experimental results of noise characteristics of Er{sup 3 +}-doped optical fiber amplifiers, pumped by 0.98 and 1.48 {mu}m LD's, are reported. The noise figures estimated from the beat noise between signal and spontaneous emission are 3.2 dB for pumping by 0.98 {mu}m LD and 4.1 dB for pumping by 1.48 {mu}m LD. The beat noise between spontaneous emission components and the spontaneous shot noise for the 0.98 {mu}m pumping are lower than those for the 1.48 {mu}m pumping.

• OSTI ID: 7139128
• Journal Information: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA) Vol. 2:3; ISSN IPTLE; ISSN 1041-1135
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603 -- Materials-- Properties
440600* -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
ALLOYS
AMPLIFIERS
CRYSTAL DOPING
ELECTRONIC EQUIPMENT
EQUIPMENT
ERBIUM ADDITIONS
ERBIUM ALLOYS
FIBERS
LASERS
NOISE
OPTICAL FIBERS
OPTICAL PROPERTIES
OPTICAL PUMPING
PHYSICAL PROPERTIES
PULSE AMPLIFIERS
PUMPING
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR LASERS
SOLID STATE LASERS