Fiber Collimator and PD Integrated Optical Module Assembly
Collimator + PD Modules integrate a fiber collimator with a photodetector in a compact assembly, providing precise beam collimation and high-sensitivity detection. Optimized for 1260–1620 nm, test wavelengths 1310 & 1550 nm, with responsivity 8–12 mA/W, dark current ≤1 nA, and polarization-dependent loss ≤0.1 dB. The compact PD size, Φ5.5 × L17 mm, ensures easy integration into dense optical modules.
Feature:
- High coupling efficiency and low insertion loss for stable detection
- Minimal beam divergence and robust design for compact modules
- AR coating options for UV, Visible, and NIR
- Customizable fiber types, lens configurations, and PD specifications
Application: Optical communication, fiber sensors, laser measurement, and photonic systems requiring precise collimation and sensitive detection
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Communication Networks
Applied in 5G base stations and next-generation networks to enable efficient optical/electrical signal conversion and transmission between base stations and core networks. Facilitates integration of millimeter-wave and optical communications to support emerging applications like smart cities and autonomous driving.
Fiber Optic Sensing
Used in distributed sensing systems (e.g., pipeline leakage monitoring, infrastructure health monitoring) to collimate light into sensing fibers and convert optical signals with environmental/structural changes into electrical signals for precise detection and early warning.

Laser Processing
Optimizes laser beam quality and utilizes PD to provide feedback on light intensity changes for real-time adjustment of processing parameters (e.g., laser power in cutting/welding). Enables non-contact product inspection in smart manufacturing.
Data Centers
Applied in internal optical interconnections to rapidly convert electrical/optical signals, reducing transmission loss and crosstalk. Enhances data center performance and energy efficiency for high-bandwidth, low-latency requirements.
Scientific Research & Experiments
Supports quantum communication (e.g., single-photon signal processing in quantum key distribution) and spectral analysis by precisely controlling optical signal input/output and enabling high-sensitivity photoelectric conversion for experimental accuracy.
| Parameter | Unit | Specification |
| Operating Wavelength | nm | 1260~1620 |
| Test Wavelength | nm | 1310&1550 |
| Responsivity | mA/W | 8~12 |
| Return Loss | dB | ≥45 |
| Dark Current | nA | ≤1.0 (@25°C, 5V) |
| Forward Current | mA | ≤10 |
| Reverse Voltage | V | ≤20 |
| Capacitance | pF | ≤6 (Vr=5V, f=1MHz) |
| Polarization Dependent Loss | dB | ≤0.1 |
| Fiber Type | / | G657 A1 or G657 A2 |
| Operating Temperature | ℃ | -10~+70 |
| Storage Temperature | ℃ | -40~+85 |
| Dimension(PD) | mm | Φ5.5×L17 |







