| Brand Name: | Gracyfiber |
| MOQ: | 100pcs |
| Payment Terms: | T/T |
GRACYFIBER's polarization-maintaining coarse wavelength division multiplexer (PM CWDM) is an optical device that combines cost-effective wavelength expansion with stringent polarization state control. Covering a wide spectrum from 1260 to 1620 nm, this series employs an industry-standard 20 nm channel spacing and supports both ITU+0 (1270/1290...1610 nm) and ITU+1 (1271/1291...1611 nm) center wavelength grids. Manufactured using high-quality PM 1300/PM1550 polarization-maintaining fiber, it supports expansion from basic 3-port to high-density 16-channel (16CH) configurations. With low insertion loss and excellent polarization extinction ratio, our PM CWDMs are ideal wavelength routing components for high-order fiber optic sensing arrays, uncooled coherent communications, and test and measurement platforms.
| Parameter | Unit | Value | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Operating Wavelength | nm | 1260~1620 | |||||||
| Center Wavelength | nm | ITU+0 (1270/1290…1610), ITU+1(1271/1291…1611) | |||||||
| Channel Spacing | - | 20 | |||||||
| Channel Passband | Min | nm | ±6.5 | ||||||
| Channel | - | 3Port | 2CH | 4CH | 8CH | 16CH | |||
| Insertion Loss | Max | nm | Pass | Ref | 1.0 | 1.5 | 3.0 | 4.5 | |
| 0.8 | 0.6 | ||||||||
| Isolator | Adjacent | Min | nm | 30 (Pass) | 30 | 30 | 30 | 30 | |
| Non-adjacent | Min | nm | 15 (Ref) | 40 | 40 | 40 | 40 | ||
| Extinction Ratio | Min | nm | 20 | 20 | 20 | 18 | 16 | ||
| Operating Axis | - | Dual Axis or Pass Port Single Axis | |||||||
| Return Loss | Min | dB | 50 | 45 | 45 | 40 | 40 | ||
| Directivity | Min | dB | 50 | ||||||
| Power Handing | Max | mW | 300 | ||||||
| Fiber Type | - | PM 1300/ PM1550 | |||||||
| Fiber Coating | mm | 0.25 / 0.9/2.0/3.0mm Red/Blue loose tube | |||||||
| Fiber Length | cm | 100 | |||||||
| Connector | - | FC/APC,FC/UPC,or Customized | |||||||
| Dimensions (HxWxD) |
250μm Bare Fiber | mm | φ5.5×35 | ||||||
| 900μm Loose Tube | mm | φ5.5×38 | |||||||
| 2mm/3mm Tube | mm | 80×58×8,100×80×10,120×80×18 | |||||||
| Rack Mount | mm | 155×129×29,482×250×44 | |||||||
| Operating Temperature | °C | -5~65 | |||||||
| Storage Temperature | °C | -40~85 | |||||||
| Remark: * Above specifications are for devices without the connectors. * For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower. * The PM fiber and the connector key are aligned to the slow axis. fast axis is blocked. |
(Designed to solve your broadband wavelength division multiplexing (WDM) crosstalk and polarization state distortion pain points)
Pain points solved/value: Features an extremely wide passband of ±6.5 nm. This gives the system strong resistance to wavelength drift, allowing architects to use lower-cost, temperature-controlled uncooled lasers to maintain excellent communication quality even in outdoor environments with drastic temperature variations.
Pain points addressed/value benefits: A minimum polarization extinction ratio (ER) of 20 dB (18 dB for 8 CH, 16 dB for 16 CH) is achieved in 3-port, 2-CH, and 4-CH configurations (Note: ER decreases by 2 dB with connectors). The system defaults to slow axis alignment with connector positioning keys and completely blocks fast axis light. This greatly simplifies the setup of polarization-sensitive test stages and eliminates measurement errors caused by polarization mode dispersion.
Pain Points Solved/Value Utilized: Employing a precise cascaded optical path diagram, taking a 4-channel module as an example, the signal sequentially passes through multiple filtering nodes from the input, with the insertion loss of each channel strictly controlled: for example, PM 1270 loss ≤0.8 dB, PM 1290 ≤1.0 dB, and the maximum insertion loss of the PM 1330 channel is only ≤1.5 dB. The maximum insertion loss of the entire 4CH module is controlled within 1.5 dB (with an additional 0.3 dB including the connector), effectively extending the transmission distance of the probe beam in the fiber optic sensing network.
Pain points addressed/value: Provides high isolation of ≥30 dB between adjacent channels and ≥40 dB between non-adjacent channels. Withstands continuous optical power input up to 300 mW and operates stably over a wide temperature range of -5°C to 65°C, easily handling high-power light source pulses.
| CWDM | - | 1 | 2 | 3 | 4 | 5 | 6 | - | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|
| - | Port | Initial Pass Channel |
Mux/ Demux |
Package Dimension | Jacket Type | Fiber Length |
- | Connector Type | Working Axis |
|
| - | XX | XXX | XX | XX | XX | XX | - | X | X | |
| PM CWDM | A1=1*1 Device | 470=1470 | 00=No | 53=Ø5.5 × 35 | 02=250um Bare fiber | 01=0.1m | 0=No | B=Dual Axis | ||
| A2=1*2 Device | 471=1471 | MU=MUX | 54=Ø5.5 × 38 | 06=0.6mm Loose Tube | 05=0.5m | 1=FC/UPC | S=Slow Axis | |||
| 24=2*4 Device | ....... | DE=Demux | 90=90 × 20× 10 | 09=0.9mm Loose Tube | 10=1.0m | 2=FC/APC | F=Fast Axis | |||
| 02=1×2 Module | 610=1610 | MD=Mux&Demux | MS=80 ×58× 8 | 20=2.0mm PVC Tube | 30=3.0m | 3=SC/UPC | X= Customized | |||
| 08=1×8 Module | 611=1611 | AD=Add/Drop | PS=100 ×80× 10 | 30=2.0mm PVC Tube | XX= Customized | 4=SC/APC | ||||
| 16=1×16Module | XX= Customized | PM=120 ×80× 18 | XX= Customized | 5=LC/UPC | ||||||
| XX= Customized | XX= Customized | 6=LC/APC | ||||||||
| X= Customized |
PMCWDM-08470MUPS0910-2S
PM CWDM ,8Channel Port ,Wavlelength 1470~1610,Mux Module,ABS BOX 100 ×80× 10, Fiber is PM1550 Fiber length 1 m with 0.9mm Blue Losse Tube ,FC/APC Connector, slow axis aligned to key.
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