Description
The GKER Photonics GK-BP Series Bandpass Filter is an advanced micro-optics component designed to transmit only the desired wavelength range while blocking out-of-band noise. Built with thin-film filter technology, it provides exceptional optical performance and long-term stability, making it ideal for precision filtering in optical communication systems. With a passband range of 1528–1565 nm, this filter is optimized for EDFA and fiber laser systems where isolation and signal clarity are critical.
Engineered for high-power applications, the GK-BP Series handles continuous wave optical power up to 300 mW and features an insertion loss as low as 0.7 dB, with typical values around 0.5 dB. Its low polarization-dependent loss (PDL) and high extinction ratio ensure minimal signal distortion. The device also maintains exceptional thermal stability and is fully operational across a wide temperature range, from -5°C to +70°C.
Available in multiple connector configurations and fiber jackets, this compact and rugged filter is suited for use in harsh environments, ensuring reliability and performance in critical systems.
Bandpass Filter -1528-1565nm
Specifications
| Operating Wavelength: | 1528 nm |
|---|---|
| Operating Bandwidth: | Not Specified |
| Isolation (min): | 12 dB |
| Max Power Handling: | 300 W |
| Polarization Maintaining: | No |
| Wavelength Range: | 1528 - 1565 nm |
| Max. Insertion Loss: | 0.7 dB |
| Typ. Insertion Loss: | 0.5 dB |
| Min. Isolation @ Wavelength ＜ 1521 Nm And ＞ 1574 Nm: | 12 dB |
| Min. Return Loss: | 50 dB |
| Max. Polarization Dependent Loss: | 0.10 dB |
| Typ. Polarization Dependent Loss: | 0.05 dB |
| Thermal Stability: | ≤ 0.005 dB/℃ |
| Thermal Wavelength Drift: | ≤ 0.003 nm/℃ |
| Max. Optical Power (Continuous Wave): | 300 mW |
| Max. Tensile Load: | 5 N |
| Fiber Type: | SMF-28 Fiber - |
| Operating Temperature: | - 5 to + 70 ℃ |
| Storage Temperature: | - 40 to + 85 ℃ |
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Features
- High Isolation: Blocks out-of-band noise with isolation > 50 dB
- Low Insertion Loss: Minimizes signal degradation, with typical IL of 0.5 dB
- High Power Handling: Supports up to 300 mW of continuous wave optical power
- Excellent Thermal Stability: Ensures performance across temperature changes (≤ 0.005 dB/°C)
- Low Polarization Dependent Loss: Maintains signal quality with PDL as low as 0.05 dB
- Compact Design: Space-saving cylindrical package (Φ5.5 mm)
Applications
- EDFA Noise Filtering: Eliminates unwanted signals to improve amplifier performance
- Fiber Laser Systems: Enhances spectral purity by blocking sidebands
- Optical Communication Networks: Supports signal filtering in WDM systems
- Optical Instrumentation: Suitable for precision measurements requiring narrowband filtering
- High-Power Systems: Withstands up to 300 mW for robust applications
Frequently Asked Questions
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