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Fiber-Free Space Isolators
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Fiber-Free Space Isolators
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Fiber-Free space isolation devices for Blocking Reverse-Propagating Beams
Fiber-Free Space Isolators can be divided into two categories based on their output mode: non-expanded-beam isolators and expanded-beam isolators.Non-expanded-beam isolators consist of a birefringent crystal, a Faraday rotator, a half-wave plate or polarizer, and a collimator. They are commonly used in fiber laser systems to effectively maintain the stability of the optical system.
Expanded-beam isolators consist of a collimator, a birefringent crystal, a Faraday rotator, a half-wave plate or polarizer, and a beam expander. The output beam is characterized by excellent beam quality and a small divergence angle. CASTECH utilizes the high-quality crystals and optical components to fabricate Fiber-Free Space Isolators with great performance.The power ranges from 1W to 500W.The products are featured with high isolation (33dB for single-stage series and 45dB for dual-stage series),low insertion loss,excellent environmental stability and low thermal lens effect.The beam expander helps customers adjust systems magnification quickly with high-quality beam quality output.
Applications
●Fabrication of fiber laser●Optical fiber sensor
●Laser processing equipment
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CASTECH’s isolators are fully in-house manufactured and customizable to meet specific needs. Explore our standard product range below.
Model Number：HPISO-t-p-f-λ-e-b-s-d-h
Type (t)
Power (p)
Fiber Type (f)
Wavelength (λ)
Pigtail Diameter (e)
Beam Diameter (b)
Stage (s)
Spot Shape (d)
Housing(h)
FF (Non Expanded Beam)
30
(30 W) ...
1 (10/125SCF) ...
1030
(1030 nm) ...
C (6 mm Armored Cable) E (8 mm Armored Cable) H (10 mm Armored Cable) L (900 μm Loose Tube) N(Bare fiber)
2
(2 mm)
...
S (Single) D (Dual)
G (Gauss)
A08 A09 ...
EB (Expanded Beam) WLP* (With Laser Pointer）
10
(10 mm)
Typical Specifications
Withstand Power
Wavelegth
Spot Diameter
Transmission
Peak Isolation
1-50 W
200-500 W
0.4-10 mm
>93 % *, ＞90 % **
>33 dB*, ＞45 dB**
50-120 W
200-500 W
0.4-10 mm
>93 %
>33 dB
200-500 W
1064 nm
1-10 mm
>93 %
>33 dB
Operating temperature range: 10℃-30℃; * Only applicable to single-stage isolator **Only applicable to dual-stage isolator
Housing dimensions(mm)：
A28
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