Multi-Channel Tunable Transmitter with Integrated Electro-Absorption M

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Multi-Channel Tunable Transmitter with Integrated Electro-Absorption M

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MTX-TEML
Multi-Channel Tunable Transmitter with Integrated Electro-Absorption Modulator
APPLICATIONS
MTX-TEML compact, tunable transmitter solution based Multiplex's state-of-the-art Electroabsorption Modulated Laser (EML) technology. MTX-TEML incorporates laser that three sections: gain, phase, Bragg (plus integrated electr0-absorption modulator). Electronic tuning achieved injecting current into phase Bragg sections, channels tuning possible with less than 10µs switching time, with channel spacing 50GHz over grid. Multiplex produces 10Gb/s variants 16-channel MTX-TEML. MTX-TEML been designed enable faster, more flexible reconfigurable networks. fast switching time makes excellent subsystem optical adddrops, well wavelength switching/routing. addition, MTX-TEML serve effective backup fixed-wavelength lasers. Multiplex incorporated very high degree integration into MTX-TEML module, making easy install operate. Built into module micro-controller (with wavelength controller algorithms), temperature controller, current sources modulator drivers well wavelength reference interface monitoring functions compact package that currently half size competitors. MTX-TEML based Multiplex's 10GB/s platforms. This will enable Multiplex incorporate manufacture MTX-TEML into existing volume production standard EMLs.
Optical add-/drop-multiplexing Optical routing Wavelength conversion Back-up source long-haul DWDM Instrumentation remote sensing
FEATURES
High degree integration Compact size (1.7" 2.1" 0.48") wavelength switching Electronically tuned wavelength Uses standard semiconductor processing Monolithically integrated modulator Excellent side-mode suppression ratio (SMSR) channels 10Gb/s variants available
Preliminary Data Sheet Optical Characteristics
PARAMETER Optical output power Power variation over channels Power variation over channels Number channels Channel spacing Extinction ratio Rise time Fall time Line width Side-mode suppression ratio (SMSR) Channel switching speed Channel switching speed UNIT
MTX-TEML
COMMENTS Peak power under modulation With power equalization power equalization
10Gb/s version 10Gb/s version modulation blanking With blanking
Optical Connection
Fiber type Fiber Length Fiber Connector FC/PC
Electrical Characteristics
6-10 NAME Flag1 Flag WLL1 WLL2 VTEC+ VTECD7 WR_N WAIT_N STR_N RST_N RFIN FUNCTION Ground Ground supply supply -5.2 supply Reserved Digital Software controlled output Digital Software controlled output Analog Input external wavelength reference Analog Input external wavelength reference Power supply Thermoelectric Cooler (TEC) Power Ground Digital Parallel data port Digital Parallel data port Digital Parallel data port Digital Parallel data port Digital Parallel data port Digital Parallel data port Digital Parallel data port Digital Parallel data port Digital Write active Digital Wait active Digital Strobe active Digital Reset active Digital 10Gb/s data input TYPE Power Power Power Power Power
Instruction BYTES SENT TEML TRANSMITTER 0-15 16-63 64-80 81-127 140-143 150-255 Data High Byte Data Byte
BYTES RECEIVED FROM TEML TRANSMITTER
FUNCTION channel 0-15 Reserved channel 0-15 with blanking Reserved gain current phase current Bragg current Reserved Read WLL1 input voltage Read WLL2 input voltage Read back facet monitor Read Read gain section voltage Read phase section voltage Read Bragg section voltage Read laser temperature Reserved Flag1 Clear Flag1 Toggle Flag1 Flag2 Clear Flag2 Toggle Flag Reserved
Communicating with TEML Transmitter: Communication with TEML transmitter achieved parallel interface, which compatible with Enhanced Parallel Port (EPP 1.9). parallel interface provides fast easy communicate with, evaluate, TEML transmitter. TEML transmitter connected directly parallel port with capability. Using requires user read wait WAIT_N signal high before attempting write read data from TEML transmitter. Channel Setting: Channel setting one-byte command. commands available every channel (one with without blanking). channel switching with blanking used, laser output power turned before tuning sections updated, then turned off. Current Setting: Current three laser sections with commands 128-130. Current setting three-byte command. first byte (128, 129, 130), selects which laser section set. least significant bits (LBSs) following word (two bytes) specifies current value. four most significant bits (MSBs) ignored. Monitoring Functions: Seven different monitoring points available through 12-bit Analog-to-Digital Converter (ADC). Voltage values read two-byte Output Code (OC) with most significant byte first. Reading Inputs: Command read voltage analog WLL1 WLL2 inputs. Output Code, 4095* VWLL /2.5. Reading Back Facet Monitor: detector (back facet monitor (BFM)) placed behind laser. monitors light coming lasers back facet. Trans-Impedance Amplifier (TIA) converts detector current (ID) voltage. trans-impedance (RTIA) typically connected output. Output Code, 4095*ID RTIA/2.5. Command reads Output Code. Reading Laser Section Voltages: Commands 135, 136, read voltages Gain, Phase, Bragg sections respectively. Output Code, OC=4095 VLD/2.5. Reading Laser Diode Temperature: laser diode temperature accessible through command 138. Thermistor (located close laser diode) used sensor. Command read Output Code. Output Code, OC=4095 (1+10k/RTH)/4. Controlling Alarm/Flag Outputs: Transmitter digital signal outputs, both which set, toggled, cleared using commands 149.
Electrostatic Discharge
Caution: This device susceptible damage result electrostatic discharge (ESD). Take proper precautions during both handling testing. Please follow guidelines, such JDEC Publications number 108-A.
Corporate Blvd. Plainfield, 07080 908.757.8817 Fax: 908.757.8910 www.multiplexinc.com

Multi-Channel Tunable Transmitter with Integrated Electro-Absorption M

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