GFT Channel Slave Generator

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Martin Lucas
6 years ago
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GFT1018 8 Channel Slave Generator Features 8 independent delay channels 1 ps time resolution < 100 ps rms jitter for optical triggered delays 1 second range Electrical or optical output Three trigger

Components test - ATE application - System Laser timing control - Control flash lamps and Q-Switches - Precision pulse Application - Gate high Speed Cameras - Instrument triggering Description The

1 GFT Channel Slave Generator Features 8 independent delay channels 1 ps time resolution < 100 ps rms jitter for optical triggered delays 1 second range Electrical or optical output Three trigger modes Internal, or external, or timing system Independent control of delay Controlled via Ethernet, Web page and front panel Compact packaging 1U, 19 Applications - Picosecond timing system - Components test - ATE application - System Laser timing control - Control flash lamps and Q-Switches - Precision pulse Application - Gate high Speed Cameras - Instrument triggering Description The GFT1018 Standard Slave delay Generator is specially designed to provide Precise pulse in Timing System application where a Master delivers optical data stream to synchronize Slave Delay Generators (see below). The GFT1018 provides eight electrical or optical independent delayed pulses on the rear panel. Delays up to 1 second can be programmed with 1ps resolution and channel to channel jitter is less than 100 ps rms. BNC outputs deliver pulse up to 10V, 1 µs under 50Ω or SC/PC outputs deliver pulse up to 1 mw (0.3mW typ.). One input channel, or one synchronized timer, or software command is used to trigger all output channels. T0 channel is used to time reference for all output delayed pulse. GFT1018 parameters can be local controlled over the front panel keys and LCD display and remote controlled via Ethernet (10/100 Mb/s) or Internet (Web page from Internal Web server). GFT1018 Slave Generators Picosecond Timing System application with 6 Slave Delay Generators page 1 05/2017

2 GFT1018: 8 Channel Standard Slave Generator Specifications Delays Channels 8 independent outputs Range 0 to 1 s Resolution 1 ps Optical trigger RMS jitter < 100 ps (T0 GFT1018 to another T0 GFT1018) Drift < 200 ps 24h00 < 500 ps 7 days < 1000 ps pp up to 7 days Accuracy < ± 1 ns pp for a delay between 0 to 1s External trigger Peak-to-peak jitter 6.5 ns (T0 Output to External trigger) External Trigger input Repetition rate Up to 100kHz Trigger level +5 V /50Ω Slope positive BNC Internal Trigger One synchronized generator Frequency= 1 Hz to 100kHz in step of 1Hz Output pulse T1 to T8 Electrical Optical Amplitude 10 V 0.5 mw Load 50 Ω ± 2% Rise/Fall time < 1 ns / 3 ns < 1 ns / 3 ns Width 1 µs +/- 100 ns 1 µs +/- 100 ns Form Square Square BNC SC/PC Output T0 Amplitude 10 V under 50 Ω Rise/Fall time < 1 ns / 3 ns Width 1 µs +/- 100 ns Clock output Frequency 9.72MHz Load 50 Ω ± 2% Level > ± 1 V pp / AC Form Square BNC Optical power input Function Input for Timing system mode Sensitivity Between -10 to -30 dbm Wavelength 1550 nm SC/APC General Software Free Drivers for Seven User Interface Front panel, Ethernet 10/100 Mb/s, Internet (Web page) Power consumption 90 To 240 V / Hz/ 1 A Temperature 20 to 25 C Weight / Size < 5 kg / 19, 2U page 2 05/2017

3 Functional overview Block diagram The GFT1018 includes the five following functions: Time base, clock controller, digital delay, fine delays and Interface controller. Block diagram Time base: This function provides a MHz time base from an internal clock (10MHz) or from optical timing system. The time base (9.72MHz) is available on a rear-panel (CLCK OUT). Clock controller: This function provides different triggers mode to each delay channel. - External trigger - Internal trigger from programmable generator between 1Hz to 100kHz - Optical trigger from timing system Digital Delay Channel: They are eight delay channels (T1 to T8). The delay of each channel is programmable up to 1 second in 1 ps increments. The T0 output pulse is used to time reference for all output delayed pulse Fine delays: Each fine delay provides an Output pulse. The Outputs are designed to drive 10V, 50Ω loads or 1mW. Interface controller: It manages internal functions (Time base, delay, Outputs driver) Front panel operation, Ethernet network and web pages (via embedded web server). page 3 05/2017

4 Trigger modes: Trigger source may be chosen from input TRIG IN, internal trigger or optical trigger. The sequence follows 3 phases: - After on insertion delay a reference pulse appear at the T0 output, - Following the reference a pulse will appear on each channel after a specified delay, - At the end of the sequence, after last delayed pulse outputs, the delay generators are initiate. When a sequence is in progress the instrument will not respond to a trigger event. After power on, all trigger sources are off (INH). External trigger mode When the external trigger source is selected a rising edge on a DEC starts a delay sequence. Internal trigger mode In this mode a delay sequence can be started from a programmable generator. Internal trigger is synchronized with optical trigger Optical trigger mode In this mode the GFT1018 receives an optical data stream from GFT3001. GFT3001 provides Master triggers and time base and delivers optical serial data stream over an optical network to synchronize Slave Delay generator: GFT3001 provides single shot and repetitive triggers: - Repetitive Triggers F1, F2, F3 are synchronous of the clock and synchronous between them. Their frequency of repetition is programmable according to 1kHz to 1Hz - Single Shot Triggers are started by an external signal or a command. The three triggers DEC0, DEC1 and DEC3 are synchronous of repetitive trigger F3. DEC0 is used to activate low frequency equipment very early of the experience as for example high voltages power supply. DEC1 and DEC3 are used to activate fast equipment near or during the experience like digitizer for diagnostics. Software tools The GFT1018 parameters can be remote controlled via Ethernet or Internet (Web page from Internal Web server) Control panel Web page: This web page, from embedded Web server, provides a simple method to configure settings for each channel (delay), trigger source, trigger mode, and to control operation and status of the instrument. The user can open a web page to control the GFT1018 device via Internet Explorer, Mozilla Firefox or Chrome. GFT1018 main Web page page 4 05/2017

Packaging Display Keyboard Indicators Front panel Ethernet T0 T1 to T4 OPT Power ON/OFF CLK DEC, Switch, Indicators Rear panel Front panel Rear panel Indicators RESEAU Lan connection: RJ45 connector

T0 T0 output: BNC connector T3 Flick at the trigger frequency of channel 3 T1 to T8 T1 to T8 outputs: BNC connector or SC/PC connector T4 Flick at the trigger frequency of channel 4 DEC Trigger

5 Packaging Display Keyboard Indicators Front panel Ethernet T0 T1 to T4 OPT Power ON/OFF CLK DEC, Switch, Indicators Rear panel Front panel Rear panel Indicators RESEAU Lan connection: RJ45 connector OPT Synchronized by optical network OPT Optical Input: SC/APC connector T1 Flick at the trigger frequency of channel 1 CLK Clock output: BNC connector T2 Flick at the trigger frequency of channel 2 T0 T0 output: BNC connector T3 Flick at the trigger frequency of channel 3 T1 to T8 T1 to T8 outputs: BNC connector or SC/PC connector T4 Flick at the trigger frequency of channel 4 DEC Trigger Input: BNC connector T5 Flick at the trigger frequency of channel 5 PLUG AC power plug ( V) T6 Flick at the trigger frequency of channel 6 I/O Power ON/OFF switch T7 Flick at the trigger frequency of channel 7 T8 Flick at the trigger frequency of channel 8 PWR Power supply ON ETH RJ45 connected Small keyboard to local control Display to local control Ordering information Model GFT1018 Description -E Electrical outputs -O Optical outputs Precis delay generator base version page 5 05/2017

GFT Channel Digital Delay Generator

GFT Channel Digital Delay Generator Features 20 independent delay Channels 100 ps resolution 25 ps rms jitter 10 second range Output pulse up to 6 V/50 Ω Independent trigger for every channel Fours Triggers Three are repetitive from three