Gain clamping in L-band erbium-doped fiber amplifier using a fiber Bragg grating

2002 ◽  
Vol 14 (3) ◽  
pp. 293-295 ◽  
Author(s):  
S.W. Harun ◽  
S.K. Low ◽  
P. Poopalan ◽  
H. Ahmad
Keyword(s):  
Fiber Bragg Grating ◽  
Fiber Amplifier ◽  
Bragg Grating ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
Gain Clamping ◽  
L Band

Gain Control in L-Band Erbium-Doped Fiber Amplifier Incorporating Broadband Fiber Bragg Grating

2002 ◽  
Vol 41 (Part 2, No. 12B) ◽  
pp. L1459-L1460
Author(s):  
Sulaiman Wadi Harun ◽  
Nizam Tamchek ◽  
Prabakaran Poopalan ◽  
Harith Ahmad
Keyword(s):  
Fiber Bragg Grating ◽  
Gain Control ◽  
Fiber Amplifier ◽  
Bragg Grating ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
L Band

A Gain-Clamped L-Band Erbium-Doped Fiber Amplifier Using Ring Laser Cavity with a Fiber Bragg Grating

2002 ◽  
Vol 41 (Part 2, No. 7B) ◽  
pp. L836-L838 ◽  
Author(s):  
Sulaiman Wadi Harun ◽  
Nizam Tamchek ◽  
Prabakaran Poopalan ◽  
Harith Ahmad
Keyword(s):  
Fiber Bragg Grating ◽  
Ring Laser ◽  
Laser Cavity ◽  
Fiber Amplifier ◽  
Bragg Grating ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped ◽  
L Band

Gain-clamped erbium-doped fiber amplifier using a single fiber Bragg grating

2001 ◽  
Vol 29 (5) ◽  
pp. 290-293
Author(s):  
T. Subramaniam ◽  
M. A. Mahdi ◽  
P. Poopalan ◽  
S. W. Harun ◽  
H. Ahmad
Keyword(s):  
Fiber Bragg Grating ◽  
Fiber Amplifier ◽  
Single Fiber ◽  
Bragg Grating ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped

L-BAND EDFA WITH INJECTION OF C-BAND ASE

2004 ◽  
Vol 13 (02) ◽  
pp. 315-319
Author(s):  
S. W. HARUN ◽  
H. AHMAD
Keyword(s):  
Noise Figure ◽  
Fiber Amplifier ◽  
Injection Technique ◽  
Small Signal Gain ◽  
Small Signal ◽  
Erbium Doped Fiber Amplifier ◽  
Gain Variation ◽  
Erbium Doped ◽  
Gain Clamping ◽  
L Band

The effect of injecting of C-band amplified spontaneous emission (ASE) from C-band erbium-doped fiber amplifier (EDFA) on the performance of L-band EDFA is demonstrated using a circulator and broadband fiber Bragg grating (FBG). Injecting a large amount of ASE (VOA=0 dB) clamps the gain at 15.2 dB from -40 to -10 dBm with a gain variation of less than 0.3 dB. Injecting a small amount of ASE (attenuation of 20 dB and above) improves the small signal gain with a negligible noise figure penalty compared to that of an amplifier without the ASE injection. A maximum gain improvement of 3.5 dB is obtained at an attenuation of 20 dB. These results show that the ASE injection technique can be used either for gain improvement or gain clamping in L-band EDFA.

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