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Band-pass Filters
F15
  • Band-pass Filters

  • Band-pass filter is a passive device that passes the wavelength within a certain range and attenuates wavelengths outside the range. Non- or polarization-maintaining type are available from CASTECH.
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Product description:

Band-pass filter is a passive device that passes the wavelength within a certain range and attenuates wavelengths outside the range. The band-pass filters produced by CASTECH are divided into polarization-maintaining type and non-polarization-maintaining type. There is an extremely flat passband without amplification or attenuation, and the waves outside the passband are attenuated within a certain range. Based on the thin film filter technology, the band-pass filters have the characteristics of high isolation and low insertion loss.

 

Applications:

●Fiber laser

●Fiber optic sensing

●ASE spectrum control

●Fiber grating application

 

 

 

Schematic diagram of bandpass filter


 

 

 

Filter Model Number:CBPF-w-f-b-l-h

Wave Length(w)

Passband Bandwidth(f)

Fiber Type(b)

Pigtail Length(l)

Housing(h)

980 nm

1030 nm

1064 nm

1550 nm

...

2 nm

5 nm

9 nm

...

Non-Polarization-Maintaining

1

(Hi1060)

2

(SMF-28e)

3

(10/125)

...

80

(800 mm)

100

(1 m)

150

(1.5 m)

A01

A02

A03

Polarization-Maintaining

P1

(PM980)

P2

(PM1550)

...

 

 

Typical Specifications

Center Wavelength

Passband Bandwidth(0.5 dB)

Cut-off Bandwidth

(25 dB)

Insertion Loss

Withstand Power

1064 nm

2nm,8nm,25nm

12nm,22nm,50nm

1.2 dB

300 mW

1550 nm

2nm,8nm,25nm

12nm,22nm,50nm

0.8 dB

300 mW

 

Housing dimensions(mm):

 

 

 

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