Fiber to Photodiode Couplers with Removable Filters

Name: Fiber to Photodiode Couplers with Removable Filters
Brand: OZ Optics
Availability: InStock

Description

The Fiber to Photodiode Couplers with Removable Filters from OZ Optics represent a versatile and cost-effective solution for integrating optical fibers with photodiode detectors. Designed to accommodate a wide range of photodiode packages in standard TO cans, these couplers can be pigtailed with singlemode, polarization maintaining, or multimode fibers, making them adaptable for various optical setups. The modular design leverages OZ Optics’ patented tilt adjustment technique, utilizing a dual-lens system to first collimate the light from the input fiber and then precisely focus it onto the photodiode’s active area. This ensures optimal coupling efficiency and reliable signal transmission.

A standout feature of this product is its removable filter holder, which is engineered to accept a variety of optical filters and elements. Users can easily install bandpass, longpass, shortpass, notch filters, or other bulk optical components such as polarizers, dichroic mirrors, and neutral-density filters. This flexibility allows researchers and engineers to tailor the optical path to their specific application requirements, whether for fluorescence imaging, colorimetry, spectral testing, or quality control in laboratory and industrial environments.

The couplers are available in multiple sizes and with customizable air gap spacings, ensuring compatibility with diverse experimental setups and OEM integration. For specialized needs, miniature pigtailed versions with built-in fixed filters can be developed on demand, supporting high-bandwidth applications with small active area photodiodes. The robust U-bracket assembly and compact form factor make these couplers suitable for both benchtop research and field deployment, offering durability without compromising performance.

With their high coupling efficiency, adaptability to various fiber types, and support for a broad range of photodiode and filter options, OZ Optics’ Fiber to Photodiode Couplers with Removable Filters are an ideal choice for advanced photonics research, biophotonics, and precision measurement tasks. Their modularity and ease of customization set them apart in the market, providing users with a reliable and scalable solution for integrating optical fibers with photodetectors across a spectrum of scientific and industrial applications.

Specifications

Type:	Other / Not Specified
Configuration:	Other
Splitting Ratio:	Other / Not specified
Fiber Type:	Single-mode (SM), Multi-mode (MM)
Connector Type:	Other / Not specified
Housing Material:	Other / Not specified
Photodiode Options:	InGaAs, Silicon (TO-can packages supported)
Operating Wavelength Range:	Custom per photodiode/filter setup
Filter Compatibility:	Bandpass, Longpass, Shortpass, Notch, Polarizers, ND
Filter Mounting:	Removable filter holder
Coupling Method:	Dual-lens with tilt adjustment (select models)
Fiber Connector Options:	FC, FC/APC, SC, ST, SMA, LC, Unterminated
Jacket Types:	0.25 mm, 0.4 mm (unjacketed), 900 µm, 3 mm
Return Loss (Pigtail Versions):	25 dB, 40 dB, or 60 dB (optional)
Housing Style:	U-Bracket (compact, rugged)
Customization:	Full customization of fiber, diode, and filter options

Got questions about specs? Use the inquiry form to ask.

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Features

High Coupling Efficiency: Optimized optical design ensures maximum light transfer from fiber to photodiode, minimizing signal loss.
Removable Filter Holder: Innovative design allows easy installation and replacement of a wide range of optical filters, including bandpass, longpass, shortpass, notch filters, polarizers, dichroic mirrors, and neutral-density (ND) filters.
Versatile Filter Compatibility: Supports virtually any bulk optical element, providing flexibility for diverse experimental and measurement needs.
Multiple Fiber Options: Available with singlemode, polarization maintaining, or multimode fiber pigtails to suit various application requirements.
Wide Photodiode Compatibility: Configurable with any standard TO-can photodiode package, including InGaAs or Si photodiodes as standard options.
High Bandwidth Capability: Supports small active area photodiodes for applications requiring high-speed or high-bandwidth detection.
Patented Tilt Adjustment: Utilizes OZ Optics’ patented tilt adjustment technique with dual-lens collimation and focusing for precise light alignment onto the detector.
Rugged and Compact Design: Durable U-bracket assembly ensures reliable performance in laboratory and industrial environments while maintaining a compact footprint.
Customizable Air Gap Spacing: Available in different sizes and air gap spacings to meet specific customer requirements.
OEM Customization Available: Miniature pigtailed couplers with built-in fixed filters can be designed for OEM and high-volume applications.
Easy Integration: Designed for straightforward integration into existing optical setups and measurement systems.
Typical Applications: Ideal for biology and biophotonics research, fluorescence imaging, colorimetry, optical spectral testing, and quality control measurements.

Applications

Biology and Biophotonics Research
Ideal for sensitive detection and measurement of biological samples, fluorescence, and other light-based assays in life sciences.
Fluorescence Imaging
Enables precise coupling of fiber-delivered light to photodiodes for high-sensitivity fluorescence detection in microscopy and imaging systems.
Colorimetry Test and Measurement
Used in color analysis instruments for accurate measurement of color properties in materials, chemicals, and biological samples.
Optical Spectral Testing
Facilitates spectral analysis by allowing easy integration of various optical filters (bandpass, longpass, shortpass, notch, ND, polarizers) for wavelength-selective detection.
Quality Control and Measurement
Applied in industrial and laboratory environments for monitoring and ensuring the quality of optical components, coatings, and assemblies.
Laser Power and Energy Monitoring
Used in laser systems to monitor output power and energy by coupling light from fiber to photodiode detectors with selectable filters for wavelength discrimination.
Environmental and Chemical Sensing
Integrated into fiber optic sensor systems for detecting trace gases, pollutants, or chemical concentrations via selective filtering and photodiode detection.
Telecommunications and Data Communications
Employed in fiber optic communication systems for signal monitoring, power measurement, and wavelength-selective detection.
OEM and Custom Instrumentation
Suitable for integration into custom analytical instruments, spectrometers, and portable test devices requiring modular filter options and high coupling efficiency.
Medical Diagnostics
Utilized in medical devices for non-invasive diagnostics, blood analysis, and optical biosensors where precise light detection is critical.
Scientific Research and Development
Supports a wide range of R&D applications in physics, chemistry, and engineering where flexible, high-performance fiber-to-photodiode coupling is required.
Photonics Education and Training
Used in academic laboratories for teaching and demonstration of optical coupling, filtering, and photodetection principles.

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Frequently Asked Questions

What are fiber to photodiode couplers with removable filters?

Fiber to photodiode couplers with removable filters are optical devices that efficiently couple light from an optical fiber to a photodiode, while allowing users to insert or swap various optical filters such as bandpass, longpass, shortpass, notch filters, polarizers, or neutral-density filters. These couplers are designed for flexibility and can be configured with different fiber types and photodiode packages.

What types of fibers and photodiodes are compatible with these couplers?

OZ Optics' fiber to photodiode couplers are compatible with singlemode, polarization maintaining, and multimode fibers. They can be configured with virtually any photodiode package supplied in a standard TO can, including InGaAs or Si photodiodes. Custom solutions for specific photodiodes and fibers are also available upon request.

What filters can be used with the removable filter holder?

The removable filter holder is designed to accept a wide range of optical elements, including bandpass, longpass, shortpass, notch filters, polarizers, dichroic mirrors, and neutral-density (ND) filters. This flexibility allows users to tailor the coupler for specific measurement or research needs.

What are the main applications for fiber to photodiode couplers with removable filters?

These couplers are widely used in biology and biophotonics research, fluorescence imaging, colorimetry test and measurement, optical spectral testing, and quality control and measurement applications. Their versatility and high coupling efficiency make them ideal for demanding optical setups.

How does the tilt adjustment technique improve coupling efficiency?

OZ Optics' patented tilt adjustment technique uses a pair of lenses to first collimate the light from the input fiber and then focus it precisely onto the active area of the photodiode. This method ensures optimal alignment and maximizes the amount of light reaching the detector, resulting in high coupling efficiency.

Can I request a custom fiber to photodiode coupler for my specific requirements?

Yes, OZ Optics offers custom-tailored solutions for fiber to photodiode couplers. Customers can specify their preferred photodiode, fiber type, and filter requirements. For OEM applications, miniature pigtailed couplers with built-in fixed filters can also be designed. Contact sales@ozoptics.com with your requirements for a personalized solution.

What are the available options for fiber jacket types and backreflection levels?

The couplers can be supplied with various fiber jacket types, including unjacketed fiber (0.25 or 0.4 mm), 900 micron OD nylon jacketing or loose tubing, and 3mm OD loose tube PVC cable. Backreflection levels for pigtail style couplers are typically available at 25, 40, or 60 dB, allowing users to select the best option for their application.

Got more questions? Use the inquiry form to ask the supplier directly.