Polarization Maintaining Bandpass Filter - 2 nm (GK-PMBP Series)
description1
Specifications
Parameter |
Unit |
Value |
Center Wavelength |
nm |
1550 |
Min. Pass Bandwidth@ - 0.5 dB |
nm |
2 |
Max. Insertion Loss |
dB |
1.0 |
Min. Isolation@ 1520 - 1547 nm & 1553 - |
dB |
25 |
Min. Return Loss |
dB |
50 |
Min. Extinction Ratio |
dB |
20 |
Thermal Stability |
dB/℃ |
≤ 0.005 |
Max. Optical Power (Continuous Wave) |
mW |
300 |
Max. Tensile Load |
N |
5 |
Fiber Type |
- |
PM 1550 Panda Fiber |
Operating Temperature |
℃ |
- 5 to + 70 |
Storage Temperature |
℃ |
- 40 to + 85 |
IL is 0.3 dB higher, RL is 5 dB lower, and ER is 2 dB lower for each connector added. Connector key is aligned to slow axis. | ||
Package Dimensions
product description
The Bandpass Filter is a critical micro optical component designed to selectively transmit specific wavelength signals while blocking unwanted noise or out-of-band signals. This device is particularly useful in applications where signal purity and suppression of noise are essential, such as in Erbium-Doped Fiber Amplifiers (EDFAs) and fiber laser systems. Here's a summary of its key features and their benefits:
Thin Film Filter Technology: The Bandpass Filter utilizes thin film filter technology, which allows for precise control over the wavelengths that are transmitted and those that are blocked. This technology typically involves layers of dielectric materials designed to reflect or transmit specific wavelengths.
High Isolation: The filter provides high isolation, which means it effectively blocks unwanted wavelengths or signals. This is important for preventing interference and crosstalk between different wavelength channels in dense wavelength division multiplexing (DWDM) systems.
Low Insertion Loss: With low insertion loss, the filter ensures that the power of the transmitted light signal is minimally reduced as it passes through the device. This helps to maintain signal strength and is especially important in high-power or sensitive laser applications.
High Return Loss: A high return loss indicates that the filter reflects back any light that is not transmitted with minimal power. This helps to reduce reflections and ghosting in the optical system, which can cause interference and reduce signal quality.
Excellent Environmental Stability: The filter is designed to maintain its performance parameters under varying environmental conditions, such as temperature fluctuations. This stability is vital for reliable operation in diverse settings, including outdoor or uncontrolled environments.
High Power Handling Capability: The Bandpass Filter can handle high optical power levels without degradation, making it suitable for use in high-power applications such as fiber lasers and amplifiers.