Reliable Pm CWDM Modules with Wide Transmission Width for Fiber Networks

• Customization: Available
• Type: Fiber Optic Multiplexer
• Wiring Devices: Integrated Wiring
• Model NO.: PM CWDM
• Condition: New
• Center Wavelength: Itu or Itu+ 1nm
• Operating Wavelength: 1260~ 1460 or 1460~ 1620 or 1260~ 1620
• Channel Spacing: 20nm
• Min. Channel Bandwidth@λ C: ±6.5/7.5nm
• Max. Channel Flatness: 0.4nm
• Max.Insertion Loss Transmission Channel: 0.6dB
• Reflection Channel: 0.4 ( 1260~ 1460 or 1460~ 1620)or 0.6( 1260~ 1620)
• Min. Isolation Adjacent Channel: 30dB
• Directionality: 55dB
• Min. Return Loss: 50dB
• Min. Extinction Ratio@23ºC: 20dB
• Max. Wavelength Thermal Stability: 0.003nm/ºC
• Max. Power Handling(Cw): 500MW
• Transport Package: OPP Bag/Blister Box, Carton
• Specification: PM CWDM Modules
• Trademark: Kernstech
• Origin: China
• HS Code: 851779900
• Production Capacity: 500000pieces/Year

Product Description

Reliable PM CWDM Modules with Wide Transmission Width for Fiber Networks

Product Description

PM CWDM modules are polarization-maintaining optical fiber circulators and isolators that are used in Coarse Wavelength Division Multiplexing (CWDM) systems. CWDM is a low-cost technology that combines multiple signals at different wavelengths into a single fiber optic cable for transmission.

Features

• High Return Loss
• Wide Transmission Width
• High Stability & Reliability
• Low Insertion Loss & High lsolation

Applications

• CWDM system
• CWDM/OADM module
• CWDM/OADM network

Specifications

Parameter		Unit	Spec
Center Wavelength		nm	ITU or ITU+ 1
Operating wavelength		nm	1260~ 1460 or 1460~ 1620 or 1260~ 1620
Channel Spacing		nm	20
Min. Channel Bandwidth@λ c		nm	±6.5/7.5
Max. Channel Flatness		nm	0.4
Max.Insertion Loss	Transmission Channel	dB	0.6
	Reflection Channel	dB	0.4 ( 1260~ 1460 or 1460~ 1620)or 0.6( 1260~ 1620)
Min. Isolation	Adjacent Channel	dB	30
	Non-Adjacent Channel	dB	40
	Reflection Channel	dB	12
Directionality		dB	55
Min. Return Loss		dB	50
Min. Extinction Ratio@23ºC		dB	20
Max. Wavelength Thermal Stability		nm/ºC	0.003
Max.Insertion Loss Thermal Stability		dB/ºC	0005
Max. Power Handling(CW)		mW	500
Operating temperature		ºC	0~+70
Storage temperature		ºC	-40~+85

Note:For device with connector,IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower. The default connector key is aligned to slow axis.

Package Dimensions

Detailed Photos

 

Company Profile

 

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.

Our Advantages

 

Beam Combiners
Utilizing unique fiber drawing and packaging technology to achieve pump efficiency of over 93%, supporting various fibers and packaging sizes to meet customized needs.

Couplers / Splitters
Offering low insertion loss and high directivity coupling solutions, supporting stable operation of optical communication systems and optical testing systems.

Isolators
Particularly suitable for test instruments, Raman fiber lasers, ultrafast fiber lasers, etc., characterized by low insertion loss, high return loss, and high isolation.

 

Packaging & Shipping

FAQ

 

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: May I buy samples from you ?
A5: Yes! You are welcome to place sample order to test our superior quality and services.