Optimal pump wavelength in the sup 4 I sub 15/2 - sup 4 I sub 13/2 absorption band for effieciet Er sup 3 sup + -doped fiber amplifiers

Journal Article · Fri Dec 01 04:00:00 EST 1989 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/68.46028· OSTI ID:7199638

Zyskind, J L; Giles, C R; Desurvire, E; Simpson, J R ^[1]

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1. AT and T Bell Labs, Crawford Hill Lab., Holmdel, NJ (US)

The gain of a highly efficient erbium-doped fiber amplifier was measured when pumped at wavelengths between 1.46 and 1.51 {mu}m. The optical pump wavelength {lambda} was determined to be 1.475 {mu}m. At this pump wavelength, the maximum gain coefficients for signals at 1.531 and 1.544 {mu} were measured to be 2.3 and 2.6 dB/mW, respectively. At {lambda},{sup opt{sub p}} high gains were achieved, ranging from 32 dB at pump power P{sup in{sub p}} = 20 mW up to 40 dB at P{sup in{sub p}} = 80 mW. These modest pump powers are within the capabilities of currently available 1.48 {mu}m diode lasers. The width about opt{sub p} for 3dB gain variation exceeded 27 nm for P{sup in{sub p}} = 10 mW and 40nm for P{sup in{sub p}} {gt} 20mW. With this weak dependence on pump wavelength, single longitudinal mode lasers do not have a significant advantage over practical Fabry-Perot multimode pump lasers.

• OSTI ID: 7199638
• 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. 1:12; ISSN IPTLE; ISSN 1041-1135
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
440600 -- Optical Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
ABSORPTION SPECTRA
ALLOYS
AMPLIFICATION
AMPLIFIERS
CRYSTAL DOPING
ELECTRONIC EQUIPMENT
EQUIPMENT
ERBIUM ADDITIONS
ERBIUM ALLOYS
FABRY-PEROT INTERFEROMETER
FIBERS
GAIN
INTERFEROMETERS
LASER MATERIALS
LASERS
MATERIALS
MEASURING INSTRUMENTS
MODE SELECTION
OPTICAL FIBERS
OPTICAL PUMPING
PULSE AMPLIFIERS
PUMPING
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS
SPECTRA