Flat-Top Optical Comb Filters
Description
Optoplex provides costomized flat-top optical comb filter based on its optical interleaver technology. In contrast with traditional Fabry-Perot cavity-based comb filter, Optoplex's comb filter is capable of transmitting modulated DWDM signals with its passband width available anywhere down to a few GHz. Both the filter channel spacing(FSR) and filter duty cycle (3-dB bandwidth to FSR ratio) can be specified by customers.
Based on Optoplex's patented technologies of micro-optics and phase modulation through thin-film coating, the flat-top comb filter is a purely passive device characterized by minimal temperature dependence, flat-top passband, high channel isolation, low PDL, and uniform insertion loss. The product is Telcordia GR-1221 qualified.
Features and Benefits of Optical Comb Filter
Wide and Flat Passband
Minimal PDL
High Isolation
Minimal Thermal Drift
Low and Customizable Dispersion
Low Insertion Loss & IL Uniformity
Dual C- and L-Band Coverage
Telcordia GR-1221/63 Qualified
Applications of Optical Comb Filter
Noise Suppression in DWDM System
Passband Reduction of Signals with High Modulation Rate
Reshape Signal Passband
Optical Ruler in DWDM System
Standard Specifications of Optical Comb Filter
Parameter
Unit
Data
Wavelength Range
nm
1527 ~ 1567 or 1567 ~ 1607
Channel Spacing
GHz
50
Inserion Loss (at center frequency, without connector)
dB
2.0
Insertion Loss Uniformity
dB
< 0.5
PDL
dB
< 0.4
Central Frequency Error
GHz
< 2
Bandwidth at 1 dB
GHz
> 3
Bandwidth at 3 dB
GHz
< 10
Bandwidth at 20 dB
GHz
< 22
Return Loss
dB
> 40
Operating Temperature
°C
-5 to 65
Storage Temperature
°C
-40 to 85
Notes:
Certain parameter specs can be varied based on customer demands.
25GHz, 33.3GHz, 50GHz, 100GHz, and other channel spacings are available.
Typical Performance of Optical Comb Filter
商品属性 [波长] 1527 ~ 1567 or 1567 ~ 1607nm