980nm Fiber Optic Isolator: Precision Blockage of Reverse Light!

2024-08-02 11:27:18

The 980nm optical fiber isolator is a specifically designed optical isolator for optical signals at the wavelength of 980 nanometers. It is a passive optical device that primarily functions to allow the transmission of optical signals in a single direction, effectively isolating any reverse-transmitted optical signals. This prevents adverse effects caused by back reflections or scattered light on the light source or system performance.

Definition

Functionality: Permits the unidirectional transmission of 980nm wavelength optical signals, preventing the reverse transmission of optical signals.

Application: Widely used in fiber-optic communications, fiber-optic sensing, fiber lasers, fiber amplifiers, and other fields, particularly in systems requiring high isolation and low noise.

Working Principle

The working principle of the 980nm optical fiber isolator is primarily based on the Faraday rotation effect. When a forward-propagating optical signal passes through the isolator, its polarization state is altered by the Faraday rotation medium and an applied magnetic field, allowing the signal to pass through. In contrast, reverse-propagating optical signals, with their different polarization states, are blocked by the isolator and cannot pass through.

Characteristics

High Isolation: Effectively isolates reverse optical signals, ensuring the purity and stability of forward optical signals.

Low Insertion Loss: Minimal impact on the transmission of forward optical signals, with low insertion loss.

High Return Loss: Provides high return loss for reflected light, reducing its impact on the system.

Good Stability: Operates stably under various environmental conditions, ensuring long-term reliability of the system.

Application Fields

Fiber-Optic Communications: Used to protect light sources and receivers in optical communication systems, preventing interference and damage caused by back reflections.

Fiber-Optic Sensing: Enhances signal-to-noise ratio and stability in fiber-optic sensing systems.

Fiber Lasers: Prevents mode hopping and power fluctuations in fiber lasers caused by internal reflections.

Fiber Amplifiers: Blocks the reverse transmission of spontaneous emission in fiber amplifiers, improving gain and stability.

In summary, the 980nm optical fiber isolator is a crucial optical device that plays a significant role in fiber-optic communications, fiber-optic sensing, fiber lasers, and fiber amplifiers.

Shenzhen optics forest Co.,Ltd specialist manufacturer of 980nm High Power Polarization Insensitive Isolator！

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Specifications
Parameter	Unit	Value
Center Wavelength (λc)	nm	980
Typ. Peak Isolation	dB	30
Min. Isolation, λc, 23 ℃, all polarization states	dB	25
Typ. Insertion Loss, 23 ℃	dB	0.8
Max. Insertion Loss, 23 ℃	dB	1.2
Min. Return Loss (Input/Output)	dB	50/50
Max. Polarization Dependent Loss	dB	0.2
Max. Average Optical Power	W	10
Max. Peak Power for ns Pulse	kW	10
Max. Tensile Load	N	5
Fiber Type	-	HI1060 Fiber
Operating Temperature	℃	10 to +50
Storage Temperature	℃	0 to +60

980nm Fiber Optic Isolator: Precision Blockage of Reverse Light!

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