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Free Space Isolators
Keyword：
Free Space Isolators
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- Description
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- CAS'TechClass
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Free space isolation device for blocking reverse transmitted beams
Free space isolators are divided into two categories: polarization dependent isolator and polarization independent isolator.
The polarization dependent isolator, or Faraday isolator consists of three major parts which are input polarizer (polarized vertically),Faraday Rotator, and output polarizer (aligned at 45° relative to the input polarizer).
The polarization independent isolator consists of three main components, which are birefringent crystal (polarizer), Faraday Rotator, half-wave plate. It's usually used for maintaining the stability of optical system effectively in fiber laser system.
CASTECH adopts high quality megneto-optic crystals with low absorption and high extinction ratios, and polarizers with low transmission losses to achieve outstanding performance. Customized free space isolators are available with peak isolation up to 45dB, maximum transmission above 95%, and aperture up to 45mm.
Applications：
●Laser precision machining
●Laser sensing systems
●Ultrafast laser system
Key words:- Free space isolator polarization independent optical
- high extinction ratios
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CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.
Model Number：HPISO-t-p-a-λ-w-h
Type(t)
Power(p)
Aperture(a)
Center Wavelengths (λ)
Waveplate(w)
Housing(h)
FS (Free Space)
DS (Dual Space)
AB (Adjustable bandwidth)
1-500 W
...
2-20 mm
...
355-4500 nm
...
C (Contained)
N (Not Contained)
A01
A02
...
Typical Specifications
Aperture
Center Wavelengths
Withstand Power
Transmission
Peak Isolation
2-15 mm
355-1080 nm
100 W
＞93 % *, ＞90 % **
＞33 dB *, ＞45 dB **
2-10 mm
1310-3000 nm
100 W
＞93 %
＞33 dB
15-20 mm
600-1080 nm
500 W
＞93 %
＞33 dB
1.5-8 mm
800-2000 nm
10-500 W
＞93 %
＞33 dB
Operating temperature range: 10℃-30℃;
* Only applicable to conventional isolator
**Only applicable to dual-stage isolators
Housing dimensions(mm)：
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