1 February 2001 Effects of signal seeding on long-wavelength-band Er3+-doped fiber amplifiers
Author Affiliations +
A study of gain improvement in the long-wavelength band (L-band) by a seeding signal from the conventional-wavelength band (C-band) is presented. The seeding signal reduces losses through amplified spontaneous emission and supplies energy for L-band amplification in the underpumped region. Gain improvement is observed for a copumped configuration, where the L-band and seeding signal are colaunched together with minimal noise figure penalty when an optimized seeding signal is used. The seeding signal boosts the L-band gain profile in the underpumped region to the flat-gain profile with gain flatness of less than 1 dB. High flat-gain values of 24 dB with gain variation of less than 0.9 dB when a seeding signal at 1555 nm is applied to the L-band amplifier pumped by only 105 mW from a 980 nm pump laser. A gain improvement of 52 dB is obtained at 1580 nm with this architecture.
©(2001) Society of Photo-Optical Instrumentation Engineers (SPIE)
Mohd Adzir Mahdi, F. R. Mahamd Adikan, P. Poopalan, S. Selvakennedy, and Harith B. Ahmad "Effects of signal seeding on long-wavelength-band Er3+-doped fiber amplifiers," Optical Engineering 40(2), (1 February 2001). https://doi.org/10.1117/1.1336528
Published: 1 February 2001
Lens.org Logo
CITATIONS
Cited by 3 scholarly publications and 3 patents.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
L band

Interference (communication)

Energy transfer

Optical amplifiers

Fiber amplifiers

Absorption

Amplifiers

Back to Top