AC Photonics, Inc.

Gain Flattening Filter

Gain Flattening Filter

ACP’s Gain Flattening Filters for Erbriun-Droped Fiber Amplifiers (EDFAs) are based on thin-film filter technology and metal bonding micro-optics packaging. The Gain Flattening Filters provide in line compensation of the spectral gain profile of EDFAs. This device is used in high-power applications in DWDM systems.

  • Wide Operating Wavelength Range
  • Low Insertion Loss
  • Flat Spectral Gain
  • High Stability and Reliability
  • Epoxy Free Optical Path
  • Fiberoptic Amplifiers


Parameter Unit Specifications
Type Standard
Operating Wavelength nm C-Band: 1528 -1565 or custom
L-Band: 1570 – 1610 or custom
Insertion Loss dB ≤ 0.60
Modulation Depth dB 1 -3 3.1 -6
Peak to Peak Error Function dB ≤ 0.50 ≤ 0.80
Polarization Dependent Loss dB ≤ 0.10
Return Loss dB ≥ 50
Optical Power mW ≤ 500
Operating Temperature °C 0 to +70
Storage Temperature °C - 40 to +85
Package Dimensions mm A=standard, Ø5.5 x L34 for bare fiber
Ø5.5 x L38 for 900um fiber
M=Compact, Ø4.8XL30 (250um bare fiber)
N=Mini, Ø4.2xL28 (250um bare fiber)

All values referenced are without connector.