Optical Communication (Bidi Module Triplex Module)
(The following spec. is for example, we can design and produce customer need. Please contact us)
(check substrate type, thickness, dimension, shap.)

Bidi Module Edge Filter
Apply:
By selecting different spectrum of laser signal, this edge filters could make certain spectrum of signal pass or reject. Help sensor receive or transmit laser signal. this type of edge filters are used in optical cummunication
bi-directional transceiver module.

0° Bidi Module Edge Filters dB Graph

0° Bidi Module Edge Filters Transmittance Graph

0° Bidi Moudle Edge Filter
Parameter	Unit	1310-SPF		1550-SPF
		Specification	Value	Specification	Value
Pass Band	nm	1310 ± 60	OK	1550 ± 60	OK
Stop Band	nm	1550 ± 60	OK	1310 ± 60	OK
Angle of Incidence	°	0	± 0.1	0	± 0.1
Ripple within PassBand	dB	< 0.22	0.019	< 0.22	0.014
Isolation within StopBand	dB	> 30	41.946	> 30	43.966
Maximum Insortion Loss within PassBand	dB	< 0.3	0.047	< 0.3	0.022
Operating Temperature (℃)	℃	-40 ~ +85	OK	-40 ~ +85	OK

Triplex Module Edge Filter
Apply:
By selecting different spectrum of laser signal, this type of edge filters could make certain spectrum of signal pass or reject. Help sensor receive or transmit laser signal. This type of edge filter is used in optical cummunication tri-directional transceiver module. The pass band or reject band is related to the laser signal requirement.

0° Triplex Module Edge Filters dB Graph

0° Triplex Module Edge Filters Transmittance Graph

0° Triplex Moudle Edge Filter
Parameter	Unit	RRT		RTR
		Specification	Value	Specification	Value
Pass Band	nm	1545 ~ 1580 < 0.22 dB	OK	1260 ~ 1500 < 0.22 dB	OK
Stop Band	nm	1260 ~ 1510 >40 dB	OK	1545 ~ 1560 > 30dB	OK
Angle of Incidence	°	45	45 ± 0.3	45	45 ± 0.3
Ripple within PassBand	dB	.	0.028	.	0.078
Isolation within StopBand	dB	.	43.311	.	33.107
Maximum Insortion Loss within PassBand	dB	.	0.045	.	0.139
Operating Temperature (℃)	℃	-40 ~ +85	OK	-40 ~ +85	OK

45° Triplex Module Edge Filters dB Graph

45° Triplex Module Edge Filters Transmittance Graph

45° Triplex Moudle Edge Filter
Parameter	Unit	45-TRR		45-TTR
		Specification	Value	Specification	Value
Pass Band	nm	1260 ~ 1360 < 0.22 dB	OK	1260 ~ 1500 < 0.22 dB	OK
Stop Band	nm	1480 ~ 1620 >30 dB	OK	1545 ~ 1560 > 30 dB	OK
Angle of Incidence	°	45	45 ± 0.3	45	45 ± 0.3
Ripple within PassBand	dB	..	0.054	.	0.109
Isolation within StopBand	dB	.	34.828	.	39.92
Maximum Insortion Loss within PassBand	dB	.	0.12	.	0.150
Operating Temperature (℃)	℃	-40 ~ +85	OK	-40 ~ +85	OK

CWDM : Coarse wavelength division multiplexing

Apply:
A common meaning for Coarse WDM meant two (or more) signals multiplexed onto a single fiber. In 2002 the ITU standardized a channel spacing grid for use with CWDM (ITU-T G.694.2), using the wavelengths from 1270 nm through 1610 nm with a channel spacing of 20 nm. But usually use the channel above 1470nm. The attenuation between 1270-1470 is too big to use. CWDM is widely used in metropolitan fiber networks system.
CWDM is also being used in cable television networks, where different wavelengths are used for the downstream and upstream signals. In these systems, the wavelengths used are often widely separated, for example the downstream signal might be at 1310 nm while the upstream signal is at 1550 nm.

	Even Channel	Odd Channel
C.W. (Central Wavelength)	1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610	1471, 1491, 1511, 1531, 1551, 1571, 1591, 1611

DWDM : Dense wavelength division multiplexing

Apply:
Dense Wavelength Division Multiplexing refers originally to optical signals multiplexed within the 1550-nm band so as to leverage the capabilities (and cost) of erbium doped fiber amplifiers (EDFAs), which are effective for wavelengths between approximately 1525-1565 nm (C band), or 1570-1610 nm (L band). Two types 100G system and 200G of DWDM is widely used, .

100G DWDM System

Parameter	Test Value
0.3dB BandWidth	0.45nm
25dB BandWidth	1.2nm
Pass Band Ripple	0.3dB
Peak Insertion Loss within Pass Band	0.4dB
Polarization Dependent Loss (PDL)	0.05 dB
Reflect Channel Isolation	13 dB
Temperature Coefficient	1 pm/℃
Operating Temperature Range	-5 ~ 70 ℃
Storage Temperature Range	-40 ~ 85 ℃

200G DWDM System

Parameter	Test Value
0.3dB BandWidth	0.8nm
25dB BandWidth	2.2nm
Pass Band Ripple	0.3dB
Peak Insertion Loss within Pass Band	0.2dB
Polarization Dependent Loss (PDL)	0.05 dB
Reflect Channel Isolation	13 dB
Temperature Coefficient	1.4 pm/℃
Operating Temperature Range	-5 ~ 70 ℃
Storage Temperature Range	-40 ~ 85 ℃