Project Description

TGG Based 635nm Optical Isolator

The Optical Isolator is characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability. It has been widely used in lasers, transmitters and other fiber optics communication equipment to suppress back reflection and back scattering.

DK Photonics offers a large selection of polarization insensitive or polarization maintaining fiber-in to fiber-out isolators. These devices can handle powers rang from 300mW to 150W or other on request, and have center operating wavelengths ranging from 400nm to 1650nm.

If you do not see a standard isolator that meets your needs, we welcome the opportunity to review your desired specification and quote a custom isolator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.

Features Applications
·         High isolation

·         Low insertion loss

·         Cost Effective

·         Excellent environmental stability and reliability

·         Fiber Optic Amplifiers

·         Fiber Optic Laser

·         Test and Measurement

·         Instrumentation

Performance Specifications

Parameters Unit Values
Central Wavelength nm 635, or 680
Operating Wavelength Range nm ±5
Typ. Peak Isolation dB 30
Min. Isolation in Band (at 25℃) dB 25
Typ. Insertion Loss dB 1.6
Max. Insertion Loss (at 25℃) dB 2.0
Max. PDL(for SM fiber) dB 0.15
Min. Extinction Ratio(for PM fiber) dB 18(Type B), 20(Type F)
Min. Return Loss dB 55/50
Maximum Power Handling (continuous wave) mW 100
Max. Tensile Load N 5
Fiber Type SM: Nufern 630-HP or other

PM: Nufern PM630-HP or other

Operating Temperature °C 0 ~ + 70
Storage Temperature °C -40 ~ +85
  1. Above specification are for device without connector, and may change without notice.
  2. IL is 1.0 dB higher and RL is 5 dB lower, ER is 2dB lower(PM type) for each connector added.
  3. Type B: Both axis working, Type F: Fast axis blocked, the default is Type B if without request.(Only for PM type)

Package Dimension

*Due to ongoing design improvements, the package size is subject to change. Please contact DK Photonics for confirmation.

Order information

P/N: ISO(PMISO)-①-②-③-④-⑤ (PMISO-B/F: Polarization Maintaining Optical Isolator)

When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail. For high power applications, we recommend direct splicing without connectors.

wavelength Fiber Type Pigtails Diameter Fiber Length Connector Type
532:532nm

635:635nm

680:680nm

XX: Other

XX/XX/XX/XX:

(core/clad/core NA/clad NA)

25:250μm bare fiber

90:900μm Loose Fiber

XX: Others

10:1.0m

XX: Other

00:None

FP: FC/PC

FA: FC/APC

SP: SC/PC

XX: Others

Part Number Example #1: ISO-635 -630HP-90-10-FA

Description: TGG Based 635nm Optical Isolator, Nufern 630-HP fiber, with 0.9mm OD loose tube, 1.0m length fiber pigtails, and FC/APC connectors at all ports.

Part Number Example #2: PMISO-F-635-PM630HP-90-10-FA

Description: TGG Based 635nm Optical Isolator, fast axis blocked, Nufern PM630-HP fiber, with 0.9mm OD loose tube, 1.0m length fiber pigtails, FC/APC connectors at all ports.

Ordering Information For Custom Parts

If you need to customize other specifications, please provide detailed description for your requirement.

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