Product Details:

Feaures

• High-precision control of the reflective wavelength,within ±0.25nm
• High-precision controlof thereflectivity, within ± 0.5%
• Side lobe suppression ratio up to -25 ~-30dB by apodization, better than the industry standard
• PMFBG is better than SMFBG at extinction ratio and locking of output wavelength. With the enhancement of EDFA power, the output spectrum of the pumped laser using PMFBG is more stable, which makes the gain of EDFA more stable

 

Applications

PMFBG/SMFBG for 980nm pump laser is used for locking of output wavelength. Due to the low temperature sensitivity of FBG, the stability of output wavelength and the efficiency of 980nm pump laser can be greatly improved.

Specifications:

Product Type	AFBG-PMF/SMF-974
Parameter	Min	Typical	Max	Unit
Centre Wavelength λc@ 25 (measured “in air")	973.75	974	974.25	nm
Peak Reflectivity @λc	1.5	2	2.5	%
Reflectivity Bandwidth (FWHM)	0.4	0.5	0.6	nm
Side Lobe Suppression Ratio Compound (SLSR)			-25	dB
Proof Test Level (>8 sec pull test)	150			kpsi
Bending Radius	15			mm
Operating Temperature Range	-20		75	℃
Shift in λc Cover Temperature	0.01			nm/K
Grating Region Length	50			mm
Grating Type	Apodised
Fiber Type	PMF/SMF
Maximum Pump Power Through the Grating	1			W
Fbg Length	3M – 4M Or as requested

 Note:  1. Centre wavelengthλc are available as requested from 973nm to 976nm

2. Peak reflectivity @λc are available as requested from 0.5% to10%

3. Reflectivity bandwidth (FWHM) are available as requested from 0.1m to 1.0nm

 

 

Product Type	AFBG-PMF/SMF-974
Parameter	Min	Typical	Max	Unit
Centre Wavelength λc@ 25 (measured “in air")	975.85	976	976.15	nm
Peak Reflectivity @λc	2.5	3	3.5	%
Reflectivity Bandwidth (FWHM)	0.6	0.65	0.7	nm
Side Lobe Suppression Ratio Compound (SLSR)			-25	dB
Proof Test Level (>8 sec pull test)	150			kpsi
Bending Radius	15			mm
Operating Temperature Range	-20		75	℃
Shift in λc Cover Temperature	0.01			nm/K
Grating Region Length	50			mm
Grating Type	Apodised
Fiber Type	PMF/SMF
Maximum Pump Power Through the Grating	1			W
Fbg Length	3M – 4M Or as requested

 Note:  1. Centre wavelength λc are available as requested from 973nm to 976nm

2. Peak reflectivity @λc are available as requested from 0.5% to10%

3. Reflectivity bandwidth (FWHM) are available as requested from 0.1m to 1.0nm

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