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Fiber Optic Isolator

Product catalog summary

Specifications:
The document provides detailed specifications for fiber optic components, including tunable bandpass filters and fiber optic isolators. The TBF-1550-1.0 filter is specified with FC/SPC and FC/APC connectors, and options for unterminated ends are available. The fiber optic isolators are designed to reduce back reflections and backscattering, with models ISC, ISS, and ISU offering varying levels of isolation and polarization mode dispersion.

Procedures:
Ordering procedures are outlined, specifying the use of model and connector codes for customization. The document emphasizes the non-refundable nature of connector termination costs due to the custom assembly.

Norms and Standards:
The document includes environmental and reliability specifications, such as high and low temperature storage tests, damp heat tests, temperature cycling, water immersion, vibration, impact, fiber torsion, and pulling tests. These tests ensure the durability and reliability of the components under various conditions.

Recommendations:
Applications for the fiber optic isolators include use in fiber optic amplifiers, ring lasers, high-speed communication systems, and CATV applications. Single polarization isolators are recommended for gyro systems and laser diode interfaces.

Key Data from Tables and Graphs:
The document includes performance graphs showing isolation and insertion loss across different wavelengths and temperatures for each isolator model. The ISC model offers peak isolation of >40 dB, ISS >50 dB, and ISU >60 dB, with varying insertion losses and polarization mode dispersion values.

Critical Information:
All models feature an epoxy-free optical path for increased performance and reliability. The document highlights the importance of selecting the correct connector options for specific applications.

Catalog excerpts

Example: FLTR-OPT-50-15-55 TBF-1550-1.0 filter with FC/SPC connector on input and FC/APC connector on output. If only a single connector is required, use the NN in the connector field designating the unterminated end (i.e. FLTR-OPT-50-15-NN). Please see the Tutorial (see page 409) for more information on fiber optic connectors available through Newport . 366 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 P h o t o n i c s a n d I n s t r u m e n t a t i o n POLARIZATION MEASUREMENT AND CONTROL OPTICAL FIBERS FIBER OPTIC COMPONENTS LASER DIODE MOUNTS LASER DIODE CONTROL AND ACCESSORIES EDUCATIONAL KITS Ordering Information Model Description Option Code(1) TBF-1550-1.0 Tunable Bandpass Filter, 1550 nm, 9/125 Pigtails, No Connectors 15 1) Use only when ordering with fiber optic connectors To order your Fiber Optic Filter with fiber optic connectors, use the following part number: Fiber Optic Connector Options Connector Style Code No Connector NN ST/SPC 30 FC/SPC 50 FC/APC 55 SC/SPC 70 SC/APC 75 Note: Fiber optic connector termination costs are non-refundable due to the custom nature of the assembly. FLTR-OPT- -- Input Connector Code Filter Model Code Output Connector Code Fiber Optic Isolators Newport’s Fiber Optic Isolators are passive, fiber-pigtailed devices that reduce back reflections and backscattering of light (highly desirable in laser applications, for example). Three models are available to meet your particular isolation requirements. The standard ISC Model isolator features typical peak isolations of >40 dB and very low polarization mode dispersion. The enhanced ISS Model and supreme ISU Model isolators feature extremely low polarization mode dispersion and stable performance over a wide wavelength and temperature range. Dimensions .268 (6.8) B A Dimensions Model A B ISC 1.38 (35) 2.17 (55) ISS 1.57 (40) 2.36 (60) ISU 1.57 (40) 2.36 (60) • Very low insertion loss, high isolation and high return loss • Minimal polarization dependent loss, and very low polarization mode dispersion • All models have an epoxy-free optical path, resulting in increased isolation performance, stability and long-term reliability • Compact lightweight assembly allows easy integration in small laboratory, field, and system applications Note: Model ISC, ISS and ISU isolators feature 1 meter, single-mode, SMF-28 900 ìm tight buffer fiber pigtails. Specifications Parameter Model ISC Model ISS Model ISU Peak Isolation (dB) >40 >50 >60 Minimum Isolation, (±20 nm over center wavelength) (dB) >32 >44 >48 Insertion Loss, Typical (dB)(1) 0.4 1.0 0.6 Insertion Loss, Maximum (dB)(1) 0.5 1.3 0.7 Return Loss (Input/Output) (dB) 65/60 60/55 65/60 Polarization Dependent Loss, Typical (dB) <0.1 <0.2 <0.1 Polarization Mode Dispersion (PMD) (ps) <0.5 <0.15 <0.05 Center Wavelength (nm) 1550 Operating Temperature Range (°C) -20 to +60 Storage Temperature Range (°C) -40 to +85 Maximum Optical Power (mW) 300 1) Without fiber optic connectors

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P h o t o n i c s a n d I n s t r u m e n t a t i o n 367 Email: [email protected] • Web: newport.com POLARIZATION MEASUREMENT AND CONTROL LASER DIODE CONTROL LASER DIODE MOUNTS FIBER OPTIC COMPONENTS OPTICAL FIBERS AND ACCESSORIES EDUCATIONAL KITS Typical Performance ISC-1550 1530 1540 1550 1560 1570 Isolation WAVELENGTH (nm) Insertion Loss INSERTION LOSS (dB) 0.5 1 1.5 50 2.0 40 30 20 10 0 ISOLATION (dB) INSERTION LOSS (dB) 0.5 1 1.5 2.0 Isolation Insertion Loss TEMPERATURE (°C) ISOLATION (dB) 0 -10 0 10 20 30 40 50 60 70 10 20 30 40 50 ISS-1550 Isolation Insertion Loss 1.0 2.0 1.5 INSERTION...

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