Optoplex Corporation
The company designs, develops, manufactures, and markets innovative fiber-optic products to communications networks, and provides customized solutions to instrument, defense, spectroscopy and sensing industries. By combining its proprietary optical design and packaging technology with its state-of-the-art optical coating expertise and facility.
- (510) 490 9930
- (510) 490 9330
- info@optoplex.com
- sales@optoplex.com
- 48500 Kato Road
Fremont, CA 94538
United States of America
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10G DPSK Demodulator
Optoplex’s Optical DPSK Demodulator, also known as Delay Line Interferometer (DLI), converts phase modulation to amplitude modulation over the entire C+L band in support of data transmission rates of 2.5,10 or 40 Gb/s. The DPSK demodulator is designed for phase modulated optical communication systemsutilized in commercial, defense and space exploration markets. The device plays a key role in improvingsignal quality and performance to meet the expanding demand for higher data rates and more complextransmission formats within current and next generation systems without major capital expenditure.Optoplex’s DPSK Demodulator is based on a patented free-space optical design, which is compact, athermal and polarization-independent. The measured frequency drift over temperature is only ~0.02 GHz/°C for our standard passive device. Further, this DPSK Demodulator exhibits a total polarization-dependent phase shift of less than 2 degrees over the entire operating temperature range with a high extinction ratio. Optoplex’s DPSK Demodulators can be configured to be fully tunable, colorless tunable or purely passive. Dual-Rate DPSK Demodulator is also available.
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Optical Channel Monitor
Optoplex Optical channel monitor (OCM) uses proprietary thin-film interference filter technology combined with a micro-actuator and high-speed electronics. Optical channel monitor is used to measure critical information data on optical transmission signals in DWDM networks for monitoring signal dynamics, determining system functionality, identifying performance change, and providing feedback for controling network elements so as to optimize operational performance. In particular, Optoplex Optical channel monitor can automatically scan the C-, L- or C+L-band wavelength range and precisely measure channel wavelength, power, and optical signal-to-noise ratio (OSNR). See the following schematic diagram for OCM working principle.
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90deg Hybrid With Balanced Receiver
This page describes one of Optoplex's innovated products, a 90deg optical hybrid integrated with balanced photo-receivers, which can be used in optical sensing applications, particularly the coherent Doppler wind LIDAR (light detection and ranging). Coherent detection has been widely found in applications for RF and optical communications. In the past few years, coherent technology has been advanced dramatically in high-speed optical communications. With this advancement, key parts and components are commercially available and cost-effective for many applications beyond telecommunications, such as narrow linewidth lasers, optical hybrid, balanced photo-receivers, and DSP, etc.
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Fabry-Perot Based Scanning Filter
This new type Fabry-Perot Based Scanning Filter (FPSF) is based on Optoplex proprietary fiber optical Fabry-Perot Etalon technology. It offers F-P based scanning filter with central wavelength at 1060nm, 1310nm, 1550nm or other customized wavelength. It can be tuned manually or automatically by scanning over a wide spectral range from 10nm to 100nm with bandwidth from 0.05nm to 1.0nm. FPSF features less than 3dB insertion loss and as high as 1kHz scanning frequency. Its unique high reliability and low insertion loss design presents the most cost-effective solution for OEM application from telecommunication to fiber sensing interrogation.
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Co-Packaged Optical Interleaver
Co-packaged interleaver consists of a pair of iterleavers in the same package. There are three input ports and three output ports. The interleaver pair may contain one interleaver (Mux) and one deinterleaver (DeMux), or a pair of (Mux) interleavers, or a pair of (DeMux) interleavers. Customers can specify configurations according to their design and applications.
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DQPSK Demodulator
Differential Quaternary Phase-Shift Keying (DQPSK) is the four-level version of DPSK. DQPSK transmits two bits for every symbol (bit combinations being 00, 01, 11 and 10) and has an additional advantage over conventional binary DPSK. DQPSK has a narrower optical spectrum, which tolerates more dispersion (both chromatic and polarization-mode), allows for stronger optical filtering, and enables closer channel spacing. As a result, DQPSK is the only modulation format which allows processing of 40Gb/s data-rate in a 50-GHz channel spacing system.
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40Gb/s DPSK Receivers
Targeting for the next-generation 40Gb/s system based on advanced optical differential phase shift keying (DPSK) demodulation, Optoplex’s 40Gb/s Integrated DPSK Receiver (DPSK Rx) demodulates an incoming DPSK optical signal into a pair of differentially (amplitude) modulated RF outputs at data rate up to 43Gb/s in a compact package. Phase modulated optical signals offer much better dispersion performance compared with traditional amplitude modulated counterparts because the carrier light stays on all the time so that the intensity-dependent nonlinear effects in the transmission link are avoided, resulting in longer transmission distances.
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2.5G DPSK Demodulator
Optoplex’s Optical DPSK Demodulator, also known as Delay Line Interferometer (DLI), converts phase modulation to amplitude modulation over the entire C+L band in support of data transmission rates of 2.5, 10 or 40 Gb/s. The DPSK demodulator is designed for phase modulated optical communication systems utilized in commercial, defense and space exploration markets. The device plays a key role in improving signal quality and performance to meet the expanding demand for higher data rates and more complex transmission formats within current and next generation systems without major capital expenditure. Optoplex’s DPSK Demodulator is based on a patented free-space optical design, which is compact, athermal and polarization-independent. Themeasured frequency drift over temperature is only ~0.02 GHz/°C for our standard passive device. Further, this DPSK Demodulator exhibits a total polarizationdependent phase shift of less than 2 degrees over the entire operating temperature range with a high extinction ratio. Optoplex’s DPSK Demodulators can be configured to be fully tunable, colorless tunable or purely passive. Dual-Rate DPSK Demodulator is also available.
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Optical Wavelength Meter
Optoplex Optical wavelength meter (OWM) uses proprietary thin-film interference filter in conjunction with Fabry-Perot cavity technology combined with a micro-actuator and high-speed electronics. Its working principle is schematically shown below. By comparison with Optical channel monitor / Optical performance monitor, the proprietary wavelength reference unit is introduced to ensure high precision wavelength measurements. Optoplex Optical wavelength meter is the only DWDM wavelength meter capable of measuring wavelengths of multi-lasers in DWDM networks over C-band and L-band wavelength range with a high accuracy better than that the wavelength locker can provide. For example, the device can simultaneously report 80 wavelength values of 80 channels at 50 GHz channel spacing with the wavelength accuracy ± 2 GHz. DPRAM, RS-232, or USB interfaces are available and OWM can be customized to meet specific requirements.
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O-Band Interleaver For 5G-PON Mux/DeMux
Optoplex has been the leading technology innovator and marker leader of optical interleavers for optical communications. • Technology and market leader of interleaver for optical communications• Dominant supplier of optical interleaver for global subsea network applications• 1st company of 25GHz interleaver • Proprietary Co-Packaged interleaver (Mux/DeMux)• Proprietary “Super” wide passband interleaver• A leading company of O- and E-band optical interleavers for 5G Mux/DeMux applications
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OSA - Handheld OSA
Optoplex’s handheld optical spectrum analyzer (OSA) is the first “smart” – inspired by Android smart-device – handheld OSA in the industry. The OSA is equipped with an Android tablet for data processing, analysis, display and communications.
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Multi-Function Test & Measurement System
Optoplex’s Multifunction Test and Measurement System (TM100 Series) is designed to provide a flexible and cost effective optical test and measurement solution, particularly for manufacturing lines. The mainframe can be mounted in 19” rack or stationed on desk-top for ease of use. There are many selections of the pluggable modules, from tunable laser, optical spectrum analyzer, EDFA, power meter, ASE light source, optical tunable filter, optical performance monitor, …, etc.
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2x4 QPSK Mixer
Optoplex's 2X4 polarization diversified optical hybrid (aka QPSK Mixer) is a 2x4 device, which mixes an incoming signal with a local oscillator. The 4 outputs of this device are connected to 4 single-ended detectors (see the function diagram below). The device features a monolithic optical core integrating a PBS with an interferometer which is also widely used in Optoplex's interleaver and DPSK-demodulator platforms. This device is athermal, colorless, data-rate independent, compact in size and designed for manufacturability. This platform can also be extended to a 2X8 polarization diversified hybrid to incorporate with 4 pairs of balanced detectors.
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2x8 QPSK Mixer
To be used for optical coherent detection such as DP-QPSK receivers, Optoplex’s ten-port 2x8 Coherent Mixer (aka QPSK mixer) combines the incoming signal with a local oscillator to generate eight light states in the complex-field space. The eight light output signals can then be coupled into four pairs of balanced detectors. The block diagram below shows the application of a 2x8 coherent mixer in a DP-QPSK receiver. Since the mixing process is data rate independent, the devices can be used for any data rate in applications such as 40Gb/s or 100Gb/s transmission systems.
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Optical Performance Monitor
Optoplex Optical performance monitor (OPM) uses proprietary thin-film interference filter technology combined with a micro-actuator and high-speed electronics. Optical performance monitor is used to measure critical information data on optical transmission signals in DWDM networks for monitoring signal dynamics, determining system functionality, identifying performance change, and providing feedback for controlling network elements so as to optimize operational performance. In particular, Optoplex Optical performance monitor can automatically scan the C-, L- or C+L-band wavelength range and precisely measure channel wavelength and power. See the following schematic diagram for OPM working principle.
