Low Refractive Index Optical Adhesives

Viscosity 70->20,000 mPas; Shear Bond Strength > 69->200 kgf/cm²; Bending Adhesion Strength 9-25 kgf/cm²; UV Curing Conditions 10-100 mW/cm², 5, 10 min; Colour Light Yellow, Colourless, White; Tg +42-+219 °C NTT-AT’s series of adhesives for fiber array assemblies feature high moisture resistance and excellent workability for v-groove fixing or optical fiber fixing. Fiber arrays are used for the input and output of optical waveguide devices. NTT-AT’s AT3925M, AT9390, AT9968, AT3727E and AT3728E epoxy-based optical adhesives are used for fixing the v-grooves and have realized price reductions while enhancing moisture resistance compared to conventional products. These adhesives can be polished after assembly. NTT-AT’s AT9575M (epoxy) and AT8105 (acrylate) adhesives for optical fiber fixing have gained popularity for their good workability as non-fluid adhesives. NTT-AT has executed durability tests that have shown no peeling of a fiber array after 2,000 hours at +85 °C and 85% of humidity. With viscosities that are appropriate for the usage location, the adhesives for fiber array assemblies are easy to use. While the adhesives for fixing v-grooves show fluidity, the optical fiber fixing adhesives’ consistency is that of a paste, suitable for protecting the fiber. In case you need any consulting regarding issues related to adhesion, please contact the AMS Technologies optical adhesives experts to discuss the detailed challenges of your application. Key Features: Excellent Durability Just the Right Viscosity for Easy Application: Non-liquid Viscosity for Fiber Fixation, Low Viscosity Fluid for Fiber Fixation into V-Type Groove Heat-proof: Maximum Glass Transition Temperature Tg of Over +200 °C (AT3925M) Viscosity: 70 to >20,000 mPas Shear Bond Strength: > 69 to >200 kgf/cm² Bending Adhesion Strength: 9 to 25 kgf/cm² UV Curing Conditions: 10 to 100 mW/cm², 5, 10 min Colour (Pre-Curing): Light Yellow, Colourless, White Glass Transition Temperature Tg: +42 to +219 °C Applications: Gluing of Fiber Array Assemblies; V-Groove Fixing; Optical Fiber Fixing

Refractive Index 1.315; 15 cps Viscosity at 25°C Norland Optical Adhesive 1315 (2g syringe) is clear liquid adhesive that will cure when exposed long wavelength ultraviolet light. NOA 1315 is recommended for bonding for glass to glass. Adhesion is also good to cellulose acetate butyrate. NOA 1315 is cured by ultraviolet light between 320 to 450 nm. Full cure requires 6 Joules/cm 2. The adhesive exhibits oxygen inhibition when used exposed to air. To overcome this the adhesive must be cured under an inert atmosphere, such as nitrogen. When used as a coating the liquid adhesive's temperature must be kept below 9C to prevent vaporization.Typical Properties of NOA 1315 Temperature Range -15°C to 90°C   Keep NOA 1315 in a cool ( 5 to 20°C) dark place. If refrigerated, allow the adhesive to come to room temperature before using.

Wavelength 600-2300 nm; Bandwidth 0.05-50 nm; Reflectivity 0.2-99.9%; SLSR ~8->15 dB; Fiber Type SM, PM, Double Clad, LMA, Custom; Fiber Pigtail Length ≥0.5, CustomFiber Bragg gratings (FBGs) have many applications in optical communication, laser technique and sensing systems. Greitlex Photonics’ series of standard types FBGs are widely used for applications like in-fiber mirrors or optical filters with narrowband optical spectrum and can act as a sensor element for strain and temperature measuring.Within Greitlex Photonics’ series of standard types fiber Bragg gratings (FBG) you find:Uniform Fiber Bragg GratingsApodized Fiber Bragg GratingsChirped Fiber Bragg GratingsApodized-chirped Fiber Bragg GratingsFiber Laser Matched Fiber Bragg GratingsTilted Fiber Bragg Gratingsπ-Phase-Shifted Fiber Bragg GratingsGTL-FBG-UF-810 uniform fiber Bragg gratings are produced with grating lengths from 0.5 mm to 10 mm. Such gratings show their full width at half maximum (FWHM) from 0.015 nm (R = 25%) to 0.03 nm (R = 90%) for 633 nm wavelength (0.1 nm and 0.17 nm at 1580 nm) and gratings length 9 mm. Standard uniform FBGs have a bandwidth of 0.15 nm to 0.6 nm, a reflectivity of 5% to 99% and grating lengths of 1 mm to 3.5 mm.Fiber Bragg gratings are sensitive to changes of strain and temperature. Uniform FBGs can be provided as separated units or chains of FBGs with different wavelengths. By using chain FBGs, multipoint monitoring of temperature, strain or other physical parameters is available. Different types of single mode optical fibers and fiber coatings are used. Acrylate coated fibers for normal temperature range of -40˚C to +100˚C. Polyimide or metal (Cu, Al) coated fibers are used for high-temperature applications with maximum temperatures of +300˚C and +500˚C respectively.GTL-FBG-AD-820 apodized fiber Bragg gratings show a special profile of induced refractive index and grating strength along the grating length. Therefore, the side lobes level becomes smaller compared to ordinary gratings. There are a lot of apodized profiles which lead to the optimization of various FBG parameters (strength, FWHM, side lobe suppression ratio (SLSR)). Apodized FBGs are useful in sensing applications, signal and Brillouin scatter filtering and others. Possible value of SLSR for different grating strengths is -10 dB to -30 dB.Our GTL-FBG-CR-840 chirped fiber Bragg gratings feature a linear variation of the FBG period along the grating length. Chirped FBGs are manufactured by using a non-periodic phase mask. The available chirp rate of the phase mask period can range from 0.01 nm/cm to 30 nm/cm. Therefore, such FBGs have a wide spectrum bandwidth and special dispersion characteristics. Chirped FBGs are useful for gain-flattening EDFA and ASE light sources, band stop filters, in ultrafast mode-locked fiber lasers, powerful lasers, and chromatic dispersion compensation telecom systems.Apodization of chirped FBG is necessary to obtain FBGs with a smooth reflection spectrum. There are several apodization profiles that lead to the optimization of various parameters of the FBG such as reflection coefficient, FWDM, side lobe suppression ratio (SLSR), or the parameter of dispersion. In chirped FBGs the dispersion is determined by the rate of change of the period along the length of the FBG. Within the GTL-FBG-ADG-820 series of apodized-chirped fiber Bragg gratings, FORC Photonics has implemented several types of apodization profiles: Sine, Gauss, Semi Gauss and Super Gauss.The simplest type of apodization is "Sine", which "saves" the length of the FBG and provides a (SLSR) value of about 20 dB. The "Gauss" apodization function provides the best SLSR value in the order of 30 dB. For many applications, such as pulsed fiber lasers, there are special requirements for the dispersion value and the shape of the reflection profile. "Gauss" apodization of chirped FBGs allows to obtain excellent results in these applications. The "SuperGauss" type of apodization is intended for obtaining a flat-top reflection spectrum. Apodized FBGs are useful in sensing applications, signal and Brillouin scatter filtering and others.Our GTL-FBG-LP-830 fiber laser matched FBG pairs are an ideal solution for fiber laser fabrication. Minimum insertion losses and other parameters are optimal for lasers with output powers of several tens of W. High- and low-reflection gratings are available, with the high-reflection grating showing -20 dB levels of about 0.5 nm to 0.7 nm. The low-reflection output grating with 5% to 40% reflectivity has FWHM values of 0.15 nm to 0.35nm. The mismatching of LR relative to HR grating is up to ±0.15 nm. For narrow-line fiber lasers we provide FBG pairs with FWHM values around or below 0.1 nm for ideal matching without adjustment.GTL-FBG-TL-860 tilted fiber Bragg gratings have an angle between the wave vector of the grating and the fiber axis. Therefore, cladding modes resonance peaks become more intensive compared to ordinary gratings. The wavelengths of tilted fiber Bragg gratings cladding modes resonances are highly sensitive to the refractive index of the medium outside the fiber cladding. TFBGs are useful in sensing applications. Possible values of the tilt angle are 1⁰ to 45⁰.GTL-FBG-PS-870 π-phase-shifted fiber Bragg gratings have a very narrow peak within their transmission/reflection spectrum. Phase-shifted FBGs are gratings with a phase defect in the center. While the grating length determines its bandwidth, the spectral width of that peak depends on the strength of the FBG’s both parts. Typical FWHM values for our π-phase-shifted fiber Bragg gratings are 0.1 nm to 0.005 nm. A typical application of phase-shifted FBGs are narrow-bandwidth optical filters for single-frequency fiber lasers.All these FBGs replace similar products from former FORC Photonics. Key Features:The following configurations can be changed at the customer's request, please contact AMS Technologies to discuss a customized fiber Bragg grating solution tailored to your project’s requirements.   GTL-FBG-UF-810 Uniform FBGs GTL-FBG-AD-820 Apodized FBGs GTL-FBG-CR-840 Chirped FBGs GTL-FBG-ADG-820 Apodized-chirped FBGs GTL-FBG-LP-830 Fiber Laser Matched FBG Pairs GTL-FBG-TL-860 Tilted FBGs GTL-FBG-PS-870 π-phase-shifted FBGs Wavelength Range [nm] 600 - 2300 Wavelengths to Quick Order [nm] - - 1069, 1081, 1529, 1875 30 values between 633 and 2300 Fiber Type Single Mode (SM), Polarization Maintaining (PM), Double Clad, LMA, Custom SM, PM, Double Clad, Custom Single Mode (SM), Polarization Maintaining (PM), Double Clad, LMA, Custom Reflectivity [%] 0.2 - 99.9 0.5 - 99.9 5 - 99 5 - >99 5 - 99 Tilt Angle - - - - - 1° - 45° - Chirp Rate [nm/cm] - - 0.01 - 30 0.01 - 25 - - - Bandwidth (WFHM) [nm] 0.05 - 1.2 0.1 - 1.2 2 - 50 0.5 - 50 0.1 - 1.2 0.1 - 0.8 Grating (FBG) Length [mm] - - 2 - 50 - - - - SLSR [dB] ~8 >10, >15 ~8 >15 - ~8 FBG Pigtail Length [m] ≥0.5, Custom - ≥0.5, Custom FBG Recoating None, Acrylate, Polyimide, Aluminium, Copper, Custom None, Acrylate, Polyimide, Custom None, Low- or High-index Polymer, Acrylate, Polyimide, Custom None, Acrylate, Polyimide, Aluminium, Copper, Custom Tensile Strength [kpsi] >100 - >100 Optical Connector Bare Fiber, FC/APC, LC/APC, Custom - Bare Fiber, Custom Bare Fiber, FC/APC, LC/APC, Custom Package Dimensions LxWxH [mm] - - - - 25 x 10 x 6.0 - -  Applications: In-fiber Mirrors; Narrowband Optical Filters; (Multipoint) Strain & Temperature Sensing; Signal and Brillouin Scatter Filtering; Gain-flattening EDFAs; ASE Light Sources; Band Stop Filters; Pulsed, Ultrafast Mode-locked & Single-frequency Fiber Lasers; Powerful Lasers; Chromatic Dispersion Compensation Telecom Systems; Other 

Non-latching; 1x2, 2x2, 1x4; Fiber Type SM, PM; 488 to 1550 nm; Insertion Loss 0.7 to 1.5 dB; Crosstalk 60 dB; Switching Time 1 ms Sercalo Microtechnology’s SN series are fast, non-latching fiber optic MEMS switches. Available in configurations from 1x2, 2x2 and 1x4, they are the best choice where low insertion loss (IL) and low polarization dependent loss (PDL) are most important. SN switches are available for a wide variety of specialty single mode (SM) fibers covering design wavelengths such as 488, 515, 633, 680, 780, 830, 980, 1064, 1310 or 1550 nm and also polarization maintaining (PM) PANDA fibers. The SN series are opto-mechanical switches for the most demanding applications in fiber optic sensor systems and instrumentation and feature a very fast response time below 1 ms and below 1.5 dB insertion loss. The SN series’ miniature package withstands rugged environments and is well suited for direct mounting on printed circuit boards. The switches are qualified according to Telcordia GR 1221. Key Features: Reliable Specialty Fibers Insertion Loss (IL): 0.7 to 1.5 dB Response Time: 1 ms Low Polarization Dependent Loss (PDL): 0.05 to 0.1 dB Crosstalk: 60 dB Miniature Size 1x2, 2x2, 1x4 Variants Applications: Instrumentation; Source Selection