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Professional Certifications
We have obtained ISO 9001 quality management system and ISO 14001 environmental management system certifications and are actively pursuing IATF 16949 International Automotive Task Force quality management system certification, laying a solid foundation for the application of LiDAR products in the automotive field.
Customized Services
We can provide customized production services for optical fiber products according to customer needs. We implement strict quality control at every stage of the manufacturing process to ensure stable and reliable product performance.
Production Equipment
We have established advanced chip packaging production lines and automatic coupling production lines. Key equipment includes: eutectic die bonding machines, fully automatic eutectic machines, parallel sealing welding machines, TO automatic sealing machines, OSA automatic transmitter coupling machines, and OSA automatic receiver coupling machines.
Professional Team
We maintain close collaborations with renowned research institutions and universities such as the Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Xiamen University, Shenzhen University, Fuzhou University, and Mingde Innovation Laboratory, bringing together a group of experts and technical personnel with long-term experience in optical device research and development.
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Model Number |
909C-31100A-14FA |
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Brand Name |
Belycomm |
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Mounting Type |
Universual type |
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Description |
14PIN Laser Device |
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Type |
Laser Diode |
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Place of Origin |
Fujian, China |
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Package Type |
Surface Mount |
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Package / Case |
Universual type |
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Operating Temperature |
-20~ +70℃ |
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Application |
Optical instrument |
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Supplier Type |
Original manufacturer, retailer, Other |
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Media Available |
Datasheet, Photo |
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Max. Forward Voltage |
Customized |
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Max. Reverse Voltage |
2V |
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Max. Forward Current |
500mA |
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Max. Reverse Current |
Customized |
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Diode Type |
Customized |
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Technology |
Customized |
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Voltage - Peak Reverse (max) |
Customized |
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Current - Average Rectified (Io) |
Customized |
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Diode Configuration |
Customized |
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Voltage - DC Reverse (Vr) (Max) |
Customized |
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Current - Average Rectified (Io) (per Diode) |
Customized |
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Speed |
Not Applicable |
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Reverse Recovery Time (trr) |
Customized |
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Capacitance @ Vr, F |
Customized |
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Current - Max |
Customized |
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Resistance @ If, F |
Customized |
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Power Dissipation (Max) |
Customized |
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Capacitance Ratio |
Customized |
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Capacitance Ratio Condition |
Customized |
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Q @ Vr, F |
Not Applicable |
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Configuration |
Customized |
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Power - Max |
100mW |
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Wevelength |
1310nm |
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Connector |
FC/APC |
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TEC voltage |
2.6V |
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TEC Current |
1.5A |
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Optical Output Power |
100mW |
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Threshold Current |
20mA |
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Operating Voltage |
1.5V |
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Operating Current |
500mA |
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Optical Isolation |
30dB |
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Thermistor Resistance |
10KΩ |
High Coherence and Spectral Purity: The DFB structure incorporates a built-in Bragg grating that acts as a wavelength-selective reflector, enabling single longitudinal mode operation. This results in a clean, stable signal ideal for high-speed digital and analog transmission.
Extended Transmission Range: Operating at 1550 nm aligns with the lowest loss window in standard single-mode fiber (SMF), allowing signals to travel up to 100 km or more without amplification. This makes it perfect for metropolitan networks, undersea cables, and satellite ground stations.
Precision Temperature Control: Integrated TEC and thermistor (temperature sensor) pins allow closed-loop temperature regulation. This feature is essential for maintaining wavelength accuracy in dynamic environments.
Seamless System Integration: The standardized 14-pin butterfly footprint ensures compatibility with industry-grade optical transceivers, transponders, and test equipment. Pins support laser drive, monitor photodiode feedback, TEC control, and bias monitoring.
Wavelength Tunability and Sensitivity: The laser can be finely tuned via temperature or current adjustments, supporting applications in WDM and reconfigurable optical networks. High sensitivity to control inputs allows for dynamic network optimization.
Laser Diode
The core light source, often a DFB or DBR laser chip, chosen for single-frequency operation (narrow linewidth) and the ability to be modulated at high speeds. It's usually mounted on a submount inside the package.
Thermoelectric Cooler (TEC)
A Peltier cooler element that actively heats or cools the laser chip to maintain a constant temperature. By stabilizing temperature, the TEC ensures the laser's wavelength remains precise (important for DWDM channels) and output power is stable over ambient temperature fluctuations.
Thermistor
A tiny temperature sensor placed near the laser. It provides feedback to a temperature control circuit. The controller drives the TEC based on the thermistor reading, locking the laser temperature to a set-point (often around 25 °C) for optimal performance.
Monitor Photodiode (PD)
Typically positioned to receive a faint reflection of the laser's light (often from the rear facet of the laser diode). This photodiode monitors the laser's output power. Its current is used in a feedback loop to regulate the laser drive current, ensuring output power stays constant over time (compensating for laser aging or environmental changes).
Optical Isolator
Many 14-pin modules, especially those for analog or coherent applications, include a miniaturized optical isolator in the light path. The isolator is a non-reciprocal optic that lets the laser light exit toward the fiber but blocks reflections coming back in. This protects the laser from optical feedback that could destabilize its frequency or increase noise. For instance, the inclusion of an isolator (often a double-stage isolator for extra protection) helps maintain ultra-low noise and prevents mode hopping.
Fiber Pigtail
The module's output is coupled into an optical fiber pigtail that is permanently attached inside. The fiber (single-mode, or polarization-maintaining (PM) fiber if required) routes the laser output out of the package. The free end of the pigtail is typically terminated with a standard connector (like FC/APC or LC) for easy connection to other fiber systems. The coupling optics inside the module (tiny lenses or mirrors) align the laser output into the fiber with high efficiency.
Telecommunications (DWDM Networks): The telecom industry relies heavily on 14-pin DFB laser modules for Dense Wavelength Division Multiplexing. In DWDM systems, many lasers of different precise wavelengths (on the ITU grid) send data through a single fiber. A cooled 14-PIN CWDM Laser can maintain the required wavelength accuracy (within picometers) over time. These modules often operate at 2.5 Gbps, 10 Gbps, or higher data rates when directly modulated, or serve as continuous-wave sources for external modulators. Telecom lasers in this format are key for long-haul fiber links and metro networks, where their integrated TEC and monitor ensure compliance with tight channel spacing and power standards.
Cable Television (CATV) and Analog Fiber Links: Cable TV head-ends use high-power, low-noise 1550 nm DFB lasers to transmit dozens of analog TV channels over fiber to neighborhood nodes. 14-pin analog CATV lasers are designed for linearity and low noise, since any laser noise or distortion would directly affect the TV signal quality. These are typically directly modulated by a broad composite analog signal (45–1000 MHz band carrying many TV channels). The high power allows driving long fiber spans or multiple splits without requiring an optical amplifier in some cases. In these analog applications, the 14-PIN CWDM Laser's built-in isolator and TEC are vital: the isolator prevents reflections from causing composite second-order (CSO) and third-order (CTB) distortions, and the TEC keeps the laser bias optimal to minimize noise and nonlinearity.
RF over Fiber (RFoF) and 5G Fronthaul: Beyond cable video, many modern systems send radio-frequency signals over fiber. This can include cellular networks (sending digitized or analog radio signals from a baseband unit to remote antennas) and satcom or radar signal distribution. 14-pin laser modules originally developed for analog modulation are well-suited here. It supports modulation bandwidths up to ~6 GHz, covering the range of most sub-6 GHz 5G and WiFi radio carriers. By using such a laser at a centralized location, one can transmit an RF signal to a remote antenna with low loss and immunity to electromagnetic interference (a big advantage of fiber). The narrow linewidth (<10 MHz) and low RIN (-160 dB/Hz) of these modules ensure that even when carrying analog RF signals, the signal integrity (phase noise, error vector magnitude, etc.) remains excellent.
Free-Space Optical Links and Sensors: Some 14-PIN CWDM Lasers are employed in free-space optical communication systems (line-of-sight laser links between buildings or vehicles) and in optical sensing. High optical power and stable frequency are desirable here. Likewise, fiber-optic sensor systems (like interferometric hydrophones or fiber gyroscopes) often use narrow-linewidth DFB lasers in 14-pin packages as the light source. Their built-in stabilization components help maintain coherence length and avoid drift in sensor measurements. Some modules even come with polarization-maintaining fiber output to support sensors that require a polarized source.
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Quantity (pieces) |
1 - 100 |
101 - 1000 |
1001 - 10000 |
> 10000 |
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Lead time (days) |
30 | 40 | 60 |
To be negotiated |
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Selling Units |
Single item |
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Single package size |
20X15X5 cm |
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Single gross weight |
1.000 KG |
As one of the most professional 14-pin cwdm laser manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy customized 14-pin cwdm laser from our factory.
14 pin cwdm laser, 1064nm 14 PIN Laser Diode, 1310nm 14 PIN Laser Diode(0/10)
