HOPECOM can provide a variety of products including Splitter, WDM couplers, TAP, Optical Isolators, Optical Filter, DWDM, Optical Patchcord, EDFA, Transmitter, Transceiver and RFTS. The production capacity has improved sharply after several expansions.

• Fiber Coupler
• Fiber Wavelength Division Multiplexers
• Polarization Independent Optical Isolator
• Adapter
• Attenuator
• Optic Fiber Connector
• Optic Filter

Hopecom

Optical Passive Components

NEL's athermal AWG is an ultra-compact MUX/DEMUX device without the need for temperature controller.

FEATURE

• Low loss
• 100 and 200 GHz channel spacing
• Large channel number up to 48
• Polarization insensitive
• Highly stable and reliable
• Tested to Telcordia GR-1209 and GR-1221

APPLICATION

• Multi/demultiplexer for DWDM signal

NEL

Athermal AWG Multi / Demultiplexer

PLC Mach-Zender interferometer- Planar lightwave circuits (PLCs) are based on silica waveguide technology and underpin the stability and reliability of the high-performance Mach-Zehnder interferometer.

Stable and reliable Mach-Zehnder interferometer based on silica-based planar lightwave circuit. It is suitable solution for the high-speed DPSK/DQPSK transmission systems.
FEATURE

• Fast optical frequency tracking by thermo-optic effect
• Low PDf (Polarization Dependent Frequency shift)
• Stable against mechanical vibration
• High reliability

APPLICATION

• DPSK/DQPSK demodulation
• Time-domain optical pulse multiplexing

NEL

Mach-Zehnder Interferometer

NEL's optical switches employ Mach-Zehnder interferometers with thermo-optic phase shifters as switching units and include an 8x8 optical matrix switch and an 8-arrayed 2x2 optical switch.

These switches are smaller and use less power than mechanical switches or O/E-SW-EO switches. These switches can be driven by +5V TTL-level voltage.
Main Features:

• Low Loss
• Low Crosstalk
• Low Return Loss
• Small Size
• Excellent Hight Reliability

NEL

Thermo-Optic Switches

VMUX and VDMUX consists of PLC based valuable optical attenuator (VOA) and arrayed waveguide grating (AWG).

The VMUX is applicable to point-to-point DWDM network, the add/drop port of wavelength blocker type ROADM node and fixed OADM node.
FEATURE

• Reliable PLC based MUX, DMUX and VOA.
• Automatic power level control.
• Per-channel power monitoring and attenuation control.
• Up to 40-channel.
• I2C electrical interface.

NEL

VOA Vmux/Vdemux