780-1550nm Pm Fiber Optical Polarization Maintaining Filter Coupler for Fiber Sensors
A polarization maintaining (PM) filter coupler is a micro-optic device that splits or combines light signals while preserving polarization. PM couplers are used in fiber optic communication systems, Raman amplifiers, and other fiber instrument applications.
PM couplers are available in a variety of coupling ratios, from 1% to 50%, and in 1x2 and 2x2 types. They have central wavelengths at 1310nm, 1550nm, or 1064nm, and can be specified with high accuracy. PM couplers are designed to maintain a high polarization extinction ratio (PER) when light is launched along the fiber's slow axis. Polarized light traveling along the slow axis is forced to travel at a lower velocity than if it had been launched along the fast axis, making it difficult for light to cross-couple from one axis to the other.
| Parameter |
Unit |
Spec |
| Type |
|
1x2 |
2x2 |
| Center Wavelength |
nm |
1550, 1310 |
1064,980 |
850,780 |
1550,1310 |
1064,980 |
850,780 |
| Operating Wavelength Range |
nm |
±40 |
±20 |
±10 |
±40 |
±20 |
±10 |
| Max. additional loss |
dB |
0.7 |
08 |
0.8 |
1.0 |
12 |
1.2 |
| Balanced (50/50) |
dB |
0.4 |
0.5 |
0.6 |
0.6 |
0.8 |
0.8 |
| Splitting ratio |
dB |
01/99~50/50 |
| Min. Extinction Ratio |
Both Axis Working |
dB |
20 |
| Fast Axis Block |
dB |
22 |
| Min. Return Loss |
dB |
50 |
| Max. Optical Power(CW) |
mW |
500 |
| Max.Tensile Load |
N |
5 |
| Fiber Type |
Input & Output |
|
PM Panda fiber |
| Tap |
|
PM Panda fiber or 780-HP, HI1060 , SMF-28e |
| Operating temperature |
ºC |
-5~+70 |
| Storage temperature |
ºC |
-40~+85 |
For device with connector, the power handling is only 1W,IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower. The default connector key is aligned to slow axis.
https://kernstech.en.made-in-china.com/product-list-1.html
Features
√ Low excess loss
√ Accurate tapping and splitting ratios
√ High stability and reliability
√ Epoxy-free optical path
√ Low loss
√ High-power handling
√ Temperature window of -40°C to +85°C
PM couplers can:
√ Split light from an input PM fiber into two output PM fibers
√ Combine light signals from two PM input fibers into one PM output fiber
√ Split high power linearly polarized light into multiple paths without perturbing
Shenzhen Kerns Tech Co., Ltd. Is a Hi-Tech enterprise having its own brand and specializing in R&D, manufacture and sales of fiber optical communications equipment.
The main products of Kerns Tech include optical combiner, isolator, circulator, optical devices, fiber optic patch cord, connector, adapter, optical coupler, attenuator, optic media converter, optic splice closure, optic terminal box, ODF etc, which are widely used in laser equipment, fiber optic equipment, laboratory research, instruments, telecommunications, broadband, broadcast, CATV and network industry.
All the products acquired the approval of the Network Access License for Telecommunication Equipment Ministry of Information Industry, PRC, ISO9001, UL and CE standard, which ensure the reliability and make them sold very well not only in the domestic market but also the overseas market.
Q1: What is the warranty?
A1: Our products typically come with a one-year warranty. During the warranty period, if the product fails due to manufacturing defects or material issues, we will provide repair or replacement services free of charge. The warranty does not cover damage caused by misuse, mishandling, or failure to follow the operating instructions.
Q2: What is the packaging?
A2: Our products are packaged with professional shockproof and protective materials to ensure they are not damaged during transportation. Typically, the packaging includes anti-static bags, foam padding, and sturdy cardboard boxes for multiple layers of protection. For special products, we can also provide customized packaging according to customer requirements.
Q3: How do I know if this product is exactly what I need?
A3: Before purchasing, you can determine if the product meets your needs through the following ways:
- Product Manual: Carefully read the product manual and technical specifications.
- Technical Support Consultation: Contact our technical support team with your specific application requirements, and we will recommend suitable products for you.
- Sample Testing: For bulk purchases, we can provide samples for you to test and evaluate.
- Customer Reviews: Check other customers' reviews and feedback.
Q4: How do you maintain quality?
A4: We ensure product quality through the following methods:
- Strict Raw Material Selection: Only select high-quality raw material suppliers.
- Advanced Production Equipment: Use modern, precise production equipment and technology.
- Quality Control System: Establish a comprehensive quality control system, with strict quality inspections at each stage from raw material intake to product dispatch.
- Professional Team: Employ experienced engineers and technicians responsible for production and quality management.
- Continuous Improvement: Continuously collect customer feedback to improve product design and manufacturing processes, enhancing product performance and reliability.
Q5: Can you do OEM for us?
A5:Yes. if there is a certain order quantity, we can do OEM including printing, logo, and customized model for you.
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