BusinessCompetency
ChemOptics supplies electronic materials for semiconductor and devices
for optical communication for future advanced industries.
We also provide foundry services to support R&D
and process validation for photonic semiconductor technologies.
Wavelength Division Multiplexing
CWDM/DWDM optical module combines (multiplexes) and divides (de-multiplexes) multiple wavelengths (signals) in the optical communication transmission network, and monitors for track anomalies. ChemOptics designs, manufactures, supplies a customized WDM optical module. We have reliability-guaranteed design capability based on more than 10 years of field experience in domestic and foreign mobile communication networks, and supply with excellent quality and competitive unit price.
Product List
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CWDM Module
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DWDM Module
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DWDM Bidi Module
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Compact CWDM Module
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Customized Products
WDM configuration diagram
WDM MUX internal diagram
CWDM Module
Features
- Low insertion Loss
- Low PDL
- High channel isolation
- Excellent environmental reliability
Applications
- WDM system
- CATV
- MAN(Metropolitan Area Network)
Specifications
| Parameter | CWDM Mux or Demux 4ch, 8ch,16ch | ||||||
|---|---|---|---|---|---|---|---|
| Operating Wavelength | 1270~1610nm | ||||||
| Channel Number | 4 | 8 | 16 | ||||
| Center Wavelength Accuracy | ±0.5nm | ||||||
| Bandwidth @ -0.5dB | ≥ 14 | ||||||
| Insertion Loss(excluding connector loss) | ≤1.8dB | ≤2.8dB | ≤3.8dB | ||||
| Directivity | ≥ 50dB | ||||||
| Optical Input Return Loss | ≥ 45dB | ||||||
| Adjacent Channel Isolation | ≥ 30dB | ||||||
| Non-Adjacent Channel Isolation | ≥ 40dB | ||||||
| Polarization Dependent Loss | ≤0.15 dB | ||||||
| Temperature Dependent Loss | ≤0.45 dB | ||||||
| Optical Power Handling | ≥ 300mW | ||||||
| Operating Temperature | 0 to +65℃ | ||||||
| Storage Temperature | -40 to +85℃ | ||||||
| Fiber Type/length | SMF-28e fiber, φ0.9mm pigtail or 3mm cable, 1+/-0.1m | ||||||
| Connector Type | Customer Specify | ||||||
| Packaging Dimension |
D-case: 120 x 80 x11.6mm O-case: 100x80x10mm F-Case: 80x60x12mm |
E-case:142 x 102 x 14.5mm L-case: 120x80x12mm |
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U2: 19inch 1U Chassis, 426x300x43.2mm U3: 19inch LGX 1U Chassis, 429x232x43.6mm |
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DWDM Module
Features
- Low insertion Loss
- Low PDL
- High channel isolation
- Excellent environmental reliability
Applications
- WDM system
- CATV
- MAN(Metropolitan Area Network)
Specifications
| Parameter | Specification | ||||||
|---|---|---|---|---|---|---|---|
| Channel Number | 4-Channell | 8-Channell | 16-Channel | ||||
| Channel Wavelength（nm） | ITU 100 GHz Grid | ||||||
| Center Wavelength Accuracy（nm） | ±0.05 | ||||||
| Channel Passband （@-0.5dB bandwidth）（nm） | >0.22 | ||||||
| Insertion Loss（dB） | 1.8 | 3.2 | 3.8 | ||||
| Channel Uniformity(dB) | 0.6 | 1.0 | 1.5 | ||||
| Ripple(dB) | <0.3 | ||||||
| Isolation（dB） | Adjacent | 28 | |||||
| Non-adjacent | 40 | ||||||
| Insertion Loss Temperature Sensitivity (dB/℃) | <0.005 | ||||||
| Wavelength Temperature Shifting(nm/℃) | <0.002 | ||||||
| Polarization Dependent Loss (dB) | <0.15 | ||||||
| Directivity (dB) | >50 | ||||||
| Return Loss (dB) | >45 | ||||||
| Power Handling (mW) | 300 | ||||||
| Operating Temperature (℃) | -10∽+70 | ||||||
| Storage Temperature (℃) | -40∽+85 | ||||||
| Package Dimension (mm) |
O-case:100x80x10 D-case:120x80x11.6 L-case:120x80x18 |
E-case:142x102x14.5 L-case:120x80x18 |
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DWDM Bidi Module
Features
- Low insertion Loss
- Low PDL
- High channel isolation
- Excellent environmental reliability
Applications
- WDM system
- CATV
- MAN(Metropolitan Area Network)
Specifications
| Parameter | Specification | ||||||
|---|---|---|---|---|---|---|---|
| Channel Number | DWDM-BiDi -02-4wave | DWDM-BiDi -04-8wave | DWDM-BiDi -08-16wave | DWDM-BiDi -16-32wave | |||
| Channel Wavelength（nm） | ITU 100 GHz Grid | ||||||
| Center Wavelength Accuracy（nm） | ±0.05 | ||||||
| Channel Passband（@-0.5dB bandwidth）（nm） | >0.22 | ||||||
| Insertion Loss（dB） | 1.8 | 3.2 | 4.2 | 5.4 | |||
| Channel Uniformity(dB) | 0.6 | 1.0 | 1.5 | 2.0 | |||
| Ripple(dB) | <0.3 | ||||||
| Isolation（dB） | Adjacent | 30 | |||||
| Non-adjacent | 40 | ||||||
| Insertion Loss Temperature Sensitivity(dB/℃) | <0.005 | ||||||
| Wavelength Temperature Shifting(nm/℃) | <0.002 | ||||||
| Polarization Dependent Loss (dB) | <0.15 | ||||||
| Directivity (dB) | >50 | ||||||
| Return Loss (dB) | >45 | ||||||
| Power Handling (mW) | 300 | ||||||
| Operating Temperature (℃) | -10∽+70 | ||||||
| Storage Temperature (℃) | -40∽+85 | ||||||
| Connector Type | LC/UPC adaptors | ||||||
| Package Dimension (mm) | 19inch 1U | ||||||
Compact CWDM Module
Features
- Low insertion Loss
- Low PDL
- High channel isolation
- Excellent environmental reliability
Applications
- WDM system
- CATV
- MAN(Metropolitan Area Network)
Specifications
| Parameter | Unit | Spec | ||||
|---|---|---|---|---|---|---|
| Channel Spacing | nm | 20 | ||||
| Central Wavelength | nm | 1270~1610/1271~1611 | ||||
| Operating Wavelength Range | nm | 1260～1620 | ||||
| Channel Bandwidth＠0.5dB | nm | +/-6.5 | ||||
| Number of Channel | — | 4 | 6 | 8 | ||
| CWDM Channel Insertion Loss | dB | < 1.2 | < 1.4 | < 1.6 | ||
| EXP Insertion loss(optional) | dB | < 1.0 | < 1.2 | < 1.4 | ||
| Ripple | dB | < 0.4 | ||||
| Adjacent Channel Isolation | dB | > 30 | ||||
| Non-adjacent Channel Isolation | dB | > 40 | ||||
| EXP Isolation(optional) | dB | > 15 | ||||
| PDL | dB | < 0.2 | ||||
| RL | dB | > 45 | ||||
| Directivity | dB | > 50 | ||||
| Power Handling | mW | < 300 | ||||
| Operating Temperature | ℃ | -10~+70 | ||||
| Storage Temperature | ℃ | -40～+85 | ||||
| Fiber Type | — | SMF-28e | ||||
| Connector Type | — | Customer Specify | ||||
| Dimensions | mm | 53.8(L)×28(W)×8(H) | ||||
Customized Products
We are capable of developing products according to customer requests.
For example, 5G fronthaul 6 wavelength MUX, 12 wavelength MUX, Dualband pass MUX etc.