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
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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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40Gb/s DQPSK Receiver
The integrated DQPSK receiver incorporates an optical phase demodulator (delay-line interferometer or DLI) with 2 pairs of balanced photo-diodes and 2 linear TIAs into a single butterfly package. Compared with the currently available discrete solution in which a separate DLI and a separate receiver are used, the integrated DQPSK receiver eliminates labor intensive fiber routing and coupling (between the DLI and the balanced receiver) as well as the skew control. Moreover, the integrated DQPSK receiver offers a smaller footprint suitable for today’s demanding high speed transponder applications.
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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.
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Balanced Photo-Receivers
Coherent detection has been found increasing applications in fiber sensing as well as in conventional RF and optical communications. In the past several years, coherent technology has been advanced dramatically in high-speed optical communications. With this, key parts and components (such as narrow linewidth lasers, optical hybrid, balanced photo-receivers and DSP, etc.) are commercially available and cost-effective for many applications beyond telecommunications.
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90-Degree Optical Hybrid
Six-port hybrid devices have been used for microwave and millimeter-wave detection systems since the mid-1990s and are a key component for coherent receivers. In principle, the six-port device consists of linear dividers and combiners interconnected in such a way that four different vectorial additions of a reference signal (LO) and the signal to be detected are obtained. The levels of the four output signals are detected by balanced receivers. By applying suitable baseband signal processing algorithms, the amplitude and phase of the unknown signal can be determined.
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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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Bandwidth-Tunable Filters
Through cascading a low-pass tunable edge filter with a long-pass tunable edge filter, one can achieve a new type of bandwidth-tunable filter whose passband width is variable while its center wavelength is still tunable. With such a device, you can
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3-Port ROADM / TOADM
Optoplex's Reconfigurable Optical Add/Drop Multiplexer (ROADM) module, also known as Tunable Optical Add/Drop Multiplexer (TOADM), is based on a proprietary micro-optics and micro-actuator design, athermal packaging technology, and state-of-the-art thin-film coating. When receiving a stream of optical signals of a plurality of wavelengths from the Input-Port (IN), this 3-port ROADM device directs a selected channel to the Drop-Port (ADD/DROP) and the remaining channels to the Express-Port (EXP), as depicted in the figure below. This tunable feature can also be used for adding a channel, when the device is used in reverse. Cascading two ROADM modules, simultaneous add and drop functions can be achieved. Each single ROADM device is optimized to cover either C- or L-band wavelengths. The standard 100- or 200-GHz channel spacing ROADM products allow for single-channel drop. Customized banded-channel drop ROADMs are available upon request.
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40Gb/s Coherent Receiver
The integrated 40-Gb/s DP-QPSK receiver incorporates two 90° optical hybrids with four pairs of balanced photodetector (PD) and four linear TIAs into a single butterfly package. Unlike other technologies in which the polarization beam splitter (PBS) and/or the power splitter (BS) are not included, Optoplex’s receiver includes both of them with the optical hybrids, PDs and the TIAs to offer a fully integrated solution which will benefit users in terms of completely removing fiber routing and the skew management. The integrated receivers work at the symbol rate up to 12.8GBaud/s.
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DPSK Demodulator
Optical differential-phase shift keying (DPSK) provides a desired modulation format that offers high receiver sensitivity, high tolerance to major nonlinear effects in high-speed transmissions, and high tolerance to coherent crosstalk. In DPSK, data information is carried by the optical phase difference between adjacent bits. For direct detection of DPSK signal (by conventional intensity detectors), a DPSK demodulator is needed to convert the phase-coded signal into an intensity-coded signal.
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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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Switchable Optical Interleaver
In a switchable interleaver, there are two operation modes: *Mode A: All pass *Mode B: InterleaverIn Mode A, the system operates at any channel spacing, in which all channels pass through the device and output from one of the two output ports as if there is no extra device inserted. When the system is switched to Mode B, the device operates as a normal optical interleaver, such 50-100GHz interleaver. The working principle is schematically shown below. In Mode B, the device could be a standard symmetric interleaver, or an asymmetric interleaver. Channel spacings are not limitted to 50-100GHz. They can be any frequency pair: between N-GHz and 2N-GHz.
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PD-200 High-Speed High-Power Photodetector
These high speed photodiode, PD-200, is hermetically sealed, high reliability, low harmonic distortion photodiode modules designed for high optical power applications with minimum bandwidths of 20 GHz. The device is well suited for receiver applications with optical pre-amplification, and is available either with or without an internal 50Ω termination. The photodiode module is available in either a V-connector package or a miniature surface mount package with CPW (coplanar waveguide) RF output.
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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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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.
