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Magneto-Optic Devices

Fiber To Free Space Isolators

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Fiber To Free Space Isolators

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Magneto-Optic Devices

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Fiber-Free Space Isolators can be divided into two categories according to its output mode: expanded-beam isolator and non-expanded-beam isolator.

The non-expanded-beam isolator consists of birefringent crystal, Faraday rotator, half-wave plate or polarizer and collimator. It’s usually used in the fiber laser system and to maintain the stability of optical system effectively.

The expanded-beam isolator consists of collimator, birefringent crystal, Faraday rotator, wave plate or optical rotating mirror and beam expanding mirror. The output beam is characterized by larger spot diameter and small divergence angle.

CASTECH utilizes the high-quality crystals and optical components for production of Fiber-Free Space Isolators to deliver great performance which power can reach from 10W to 500W. The products are featured with high isolation(single-stage series 35dB, dual-stage series 50dB), low insertion loss, excellent environmental stability and free of thermal lens effect. The beam expanders facilitate customers replacing systems with superior beam quality of desired size spots.

Applications：

● Fabrication of fiber Laser

● Optical fiber sensor

● Laser gauge etc

Iintroduction：

	Single Stage	Dual Stage	With Laser Pointer	Non-Expanded Beam
Center Wavelength	980/1030/1064nm	980/1030/1064nm	1064nm	980/1030/1064nm
Operating Wavelength Range	≥±10nm	≥±20nm	≥±10nm	≥±10nm
Peak Isolation	≥35	≥45	≥35	≥35
Isolation in Band at 23℃	≥25	≥35	≥25	≥25
Insertion Loss at 23℃	≤0.4	≤0.6	≤0.5	≤0.4
Polarization Dependent Loss	≤0.15	≤0.15	≤0.15	≤0.15
Return Loss (Input/Output)	≥50	≥50	≥50	≥50
M2 Degradation	<10%	<10%	<10%	<10%
Output Beam Diameter(1/e2)	6,7,8mm Can be customized			0.5mm Can be customized
Optical Power(Average)	20,30,50,100,200W,500W Can be customized
Peak Pulse Power	50KW, Can be customized
Laser Pointer	/	/	/	650nm,<5mW,>1m
Fiber Type	LMA Fiber / PM Fiber or others	LMA Fiber / PM Fiber or others	LMA Fiber / PM Fiber or others	LMA Fiber / PM Fiber or others
Operating Temperature Range	10-50℃	10-50℃	10-50℃	10-50℃
Storage Temperature Range	-10-60℃	-10-60℃	-10-60℃	-10-60℃

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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）
EB	20	PM Fiber	1064	C	7	S		A01
EB	50	Non-PM Fiber	1064	C	7	S		A02
EB	50	Non-PM Fiber	1064	C	7	S		A03
EB	70	Non-PM Fiber	1064	C	7	S		A04
EB	100	Non-PM Fiber	1064	C	7	S		A05
EB	200	Non-PM Fiber	1064	C	7	S		A06
WLP	150	Non-PM Fiber	1064	C	7	S		A07
FF	70	Non-PM Fiber	1064	C	/	S		A08
WLP	50	Non-PM Fiber	1064	C	7	S		A09
EB	50	Non-PM Fiber	1064	C	7	D		A10
EB	100	Non-PM Fiber	1064	C	7	D		A11
FF	100	Non-PM Fiber	1064	C	/	D		A12
EB	30	Non-PM Fiber	1064	C	7	S		A13
FF	1	PM Fiber	1064	L	1	S		A14
EB	200	非PM Fiber	1064	C	9	S		A15
EB	200	PM Fiber	1064	E	7	S		A16
EB	20	Non-PM Fiber	1064	C	8	S		A17
EB	20	Non-PM Fiber	1064	C	7	S		A18
EB	200	Non-PM Fiber	1064	C	7	D		A19
EB	100	Non-PM Fiber	1064	C	7	S		A20
EB	50	Non-PM Fiber	1064	C	7	S		A21
FF	70	Non-PM Fiber	1064	C	/	S		A22
FF	70	Non-PM Fiber	1064	C	/	S		A23
WLP	100	Non-PM Fiber	1064	C	7	S		A24
EB	20	Non-PM Fiber	1064	C	7	S	G	A25
EB	20	Non-PM Fiber	1064	C	7	S	G	A26
FF	20	Non-PM Fiber	1064	C	/	S		A27
FF	20	Non-PM Fiber	1064	C	/	S		A28
EB	100	PM Fiber	1064	C	7	S		A29
EB	100	PM Fiber	1064	C	7	D		A30
FF	1	PM Fiber	1064	L	1	S	G	A31
EB	500	Non-PM Fiber	1064	C	7	S		A32
WLP	20	Non-PM Fiber	1064	C	7	S	G	A33
FF	20	Non-PM Fiber	1064	C	/	S		A34
FF	500	Non-PM Fiber	1064	L	/	S	G	A36
WLP	50	Non-PM Fiber	1064	C	7	S		A37
FF	50	PM Fiber	1064	C	5	S	G	A38
FF	200	PM Fiber	1064	C	5	S	G	A39

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