FTTH Optical Grating Reflector/ Optical Grating Filter/Fiber Bragg Grating Filter

FTTH Optical Grating Reflector/ Optical Grating Filter/Fiber Bragg Grating Filter

1 : Product description and application : 1650nm fiber grating optical filter is the important components in the field of Optical communications link to detect. The principle is equivalent to a band-pass filter, which completely reflects light from 1643.5nm to 1656.5nm back (the return ratio is...

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Product Details

1Product description and application

1650nm fiber grating optical filter is the important components in the field of Optical communications link to detect. The principle is equivalent to a band-pass filter, which completely reflects light from 1643.5nm to 1656.5nm back (the return ratio is over 99.5%) and all other wavelengths of light pass through. Used in the field of communication can be separated communication light (C + L band) and detection of light, to prevent the detection of light through to the communication signal impaction, and can detect the return light at the control. All aspects of fiber grating indicators are stronger than the coating method.

 



2. Product Function:

Pass 1310+1550 nm and Stop 1650nm.

RoHS compliance

 

3. Technial parameter:

 


Parameters

Units

Minium

Typical

Maximum

1

Wavelength

nm

1260-1625

2

Reflective tape

nm

1644.5-1655.5

3.1

Insertion loss(1260nm-1360nm

dB



1.4

3.2

Insertion loss(1460nm-1600nm

dB



1.4

3.3

Insertion loss(1600nm-1625nm

dB



2.0

3.4

Insertion loss(REFLECT BAND

dB

21



4.1

Return loss(1260nm-1360nm

dB

35



4.2

Return loss(1460nm-1580nm)

dB

35



4.3

Return loss(1580nm-1620nm)

dB

30



4.4

Return loss(1610nm-1620nm)

dB

30



4.5

Return loss(1620nm-1625nm)

dB

20



4.6

Return loss(REFLECT BAND) (Note 3)

dB

0


1.0

5

Polarization-dependent loss(1260nm-1600nm)

dB



0.4

6

Jitter (REFLECT BAND)

dB



0.6

7

Optical power

dBM

27



8

Pluging No.


500



9

Connector Type

SC/APC Male & SC/APC Female


Note:

(1) ORL(dB) = -10 log 10(Reflected Power/ Input Power) [dB];

(2) IL(dB) = -10 log 10(Output Power/ Input Power) [dB];

(3) To measure the Return Loss of reflect band, the light of 1650nm should be injected from the female side of reflector.

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4 : Operating temperature/moisture/storage

NO

PAEAMETER

SPECIFICATION

UNITS

NOTE

3.1

Working temperature

-25+65

——

3.2

Working temperature

595

%RH

——

3.3

Storaging temperature

-40+85

——

3.4

Storaging temperature

595

%RH

——

5. Package structure:

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6. Product features:

grating embedded in the fiber, free from environmental pollution;

high reliability, long life expectancy

Reflectance is high for bands that need to be blocked (above 99.5%), close to total reflection

The wavelength of the reflection band is controlled accurately (1643.5nm ~ 1656.5nm)

In the bandpass edge of the transition zone is very narrow (less than 2nm), this area is all-pass;

Using the standard common adapter structure, easy connection;




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