Appointech, Inc.
Leading supplier of Fiber Optic Components to communication equipment manufacturers worldwide, Appointech is also specialized in the design of handheld Fiber Optic Test Instruments. We also offer custom designs, and welcome OEM and ODM requests.
- 886-3-573-8478
- 886-3-573-8441
- sales@appointech.com
- 6F-2, NO.192 Tung-Kuan Rd.
Hsinchu, R.O.C.
Taiwan
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product
Single Fiber Transceivers
Single strand fiber solutions are the simplest way to fiber optimization,immediately doubling the capacity of the installed fiber plant. Insteadof using two dedicated strands, one for receiving and the other fortransmitting, each strand carries a bi-directional signal. The fiberplant capacity doubles, which in turn can double the per fiber returnon investment (ROI) with no need for more physical fiber. Thesesolutions have been incorporated for many years in the Fiber Driver,MRV's Optical Multi-Service product line. Recent technologicaladvancements at MRV have yielded many new variations of thesesolutions, doubling the efficiency of fiber even down to Ethernet inthe First Mile.
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PIN Photodiode
PIN photodiode is a kind of photo detector, it can convert optical signals into electrical signals.This technology was invented in the latest of 1950's. There are three regions in this type of diode. There is a p-region an intrinsic region and an n-region. The p-region and n-region are comparatively heavily doped than the p-region and n-region of usual p-n diodes. The width of the intrinsic region should be larger than the space charge width of a normal p-n junction. The PIN photo diode operates with an applied reverse bias voltage and when the reverse bias is applied, the space charge region must cover the intrinsic region completely. Electron hole pairs are generated in the space charge region by photon absorption. The switching speed of frequency response of photo diode is inversely proportional to the life time. The switching speed can be enhanced by a small minority carrier lifetime. For the photo detector applications where the speed of response is important, the depletion region width should be made as large as possible for small minority carrier lifetime as a result the switch speed also increases.
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Transmitter / Receiver Modules
An RF module (radio frequency module) is a (usually) small electronic device used to transmit and/or receive radio signals between two devices. In an embedded system it is often desirable to communicate with another device wirelessly. This wireless communication may be accomplished through optical communication or through radio frequency (RF) communication. For many applications the medium of choice is RF since it does not require line of sight. RF communications incorporate a transmitter and/or receiver.
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Dual Fiber Transceivers
The benefits and overall savings on a single strand (simplex) versusdual strand (duplex) fiber implementation can be considerable.Considerations include not only the cost of fiber optic cabling itself,but also the labor and material involved in terminating the endpoints,simplex versus duplex patch cords, cross-connect rack space, reducedpoints of failure, and other direct and indirect costs. This technologycan also defer the need to install new fiber to support unexpectedgrowth requirements.
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Light Source
A light source essentially is an optical transmitter that is paired with an optical receiver, both of which are connected to electrically based devices or systems. So, the source converts electrons to photons and the detector converts photons to electrons.
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PIN-TIA
The fiber-optic coaxial PIN-TIA receiver module is designed for SONET/SDH fiber-optical communicationnetworks, using reliable InGaAs PIN photodiode (PD) highly integrated with low noise transimpedence amplifier(TIA) to convert a long wavelength input optical signal into a differential (or single) output. It is a highly reliablemodule with excellent performance.
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LED
light-emitting diode (LED) is a two-lead semiconductor light source. It is a pn junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons.
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Fiber Loss Meter
Testing for loss (also called "insertion loss") requires measuring the optical power lost in a cable (including fiber attenuation, connector loss and splice loss) with a fiber optic light source and power meter (LSPM) or optical loss test set (OLTS.)
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Laser Diode
A laser diode, also known as an injection laser or diode laser, is a semiconductor device that produces coherent radiation (in which the waves are all at the same frequency and phase) in the visible or infrared (IR) spectrum when current passes through it.
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Loss Meter
L2000
3-in-1 as loss meter, light source, and power meter As loss meter Measure fiber loss at 1310nm and 1550nm As light source Single-head selectable output wavelength of 1310 or 1550 nm Ultra high output stability 0.05dB High output power preset at 0 dBm, or at customer-defined value Selectable CW, 270 Hz, 1KHz or 2KHz modulated output As power meter Calibrated outputs at 850, 1310, 1490, 1550, and 1625nm Data storage, logging, and PC up-loading Interactive measurements via PC Calibration on-site with customer's own standard if needed Selection of relative/absolute power measurement Display measurement in dB, dBm, mW, uW, nW Resolution 0.01dB; absolute accuracy 0.25dB For both single-mode and multi-mode optical fiber Small size, easy for field applications Light weight, less than 0.2Kg Auto power shut-off Enable / Disable Auto laser shut off at above 60oC Rechargeable battery, Battery-full and Battery-low indicator Changeable receptacle connector FC, SC, ST
