ST/APC Fiber optic Attenuator, Male to Female, 1-25dB

ST/APC Fiber optic Attenuator, Male to Female, 1-25dB attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber. The basic types of optical attenuators are fixed, step-wise variable, and continuously variable.

These fiber optic attenuators consist of a male ST connector on one end and a female ST connector on the other end. When a cable end in inserted into the female end, the remaining male end can be connected to the equipment where the cable would otherwise connect directly, but providing the desired signal strength reduction. This attenuator is available in many dB attenuation values between 1dB and 25dB.

Product Specification

Optical connector	ST/UPC	Transfer Mode	Singlemode
Return Loss	≥65dB	Attenuation Accuracy	1-5dB ±0.5, 6-10dB ±0.7, >10dB ±1.0
Operating Wavelength	1260-1620nm	Optical Input Power	200mW
Operating Temp Range	-40-75°C	Humidity	95%RH

high quality build-out attenuators ranging from 1 to 30dB. Each attenuator is made with continuous light-absorbing and metal-ion doped fiber which offers excellent environmental stability and low back reflection. The front of the attenuator is a male plug connector style that allows the attenuators to be plugged directly into receiver equipment or adaptors in patch panel. The rear is a female socket adaptor that allows a patch cord to be mated into the back of the attenuator. The attenuator is available in SC, FC, ST, LC, and MU type. In a fiber optic system, build out attenuators play an important role in controlling optical power levels in Telecommunications, CATV applications and other single mode fiber optic communications applications. As such, they must offer consistent performance over a range of operating conditions so attenuation levels remain constant and predictable.

Features

• Compliant with bellcore GR910
• Long term reliability
• Simple manipulation
• High power endurance
• High return loss
• Low PDL

Applications

• EDFA
• Power balancing in DWDM
• CATV
• Power leveling in optical add/drop multiplexing

Specification ST/APC Fiber optic Attenuator

Characteristics	Unit	Conditions	Values
Attenuation	dB	UPC APC	1 - 30 1 - 20
Return Loss	dB	UPC APC	≥50 ≥60
Operating Wavelength	nm	–	1310 and 1550, 1240 – 1600
Attenuation Accuracy	–	1 - 4dB 5 - 30dB	≤0.5dB ≤10%
Operating Temperature	°C	–	-40 - +75
Storage Temperature	°C	–	-40 - +85
Polarization Dependent Loss	dB	–	≤0.2
Relative Humidity	%	75°C	95
Vibration	dB	10 - 55, 2Hrs	IL≤0.2
Impact	dB	1.5m, 5 drops	IL≤0.2

Highly Efficient, Stable and Durable

Good interchangeability, repeatability, thermal stability and abrasive resistance; High reliability and performance. Low insertion loss: average additional loss value lower than 0.2db；High return loss: more than 1000 times insertion and extraction.

Excellent Isolating Effect, Eliminating Damage Effectively

Noise caused by group loop can be effectively restrained. Electrically, signal field is entirely isolated from host control terminal,thus accidental damage to the host controller can be highly avoided.

High Optical Performance, Excellent Mechanical Stability

Advanced grinding machine enables fiber’s center grinding offset. We adopt zirconia ferrule with alkali resistance, acid resistance, high-temperature resistance and ultrahigh-hardness, which possess high optical performance and excellent mechanical stability.

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