Work Review Angel Monera Martinez

Index Objectives Time Frame Analog Link  Analog Requirements  Miteq Characterization and tests Digital Link  Requirements  Laser and photodiode Tests and results  The prototypes (test and results) Software Developed Test Beam & Link Validation Pricing Review and Conclusions Bibliography Acknowledgments Request and questions

Objectives Develop an Analog Optical Link for the AB/RF Group Develop a Digital Optical Link Develop the links and leave them ready for the test beam Help to install the links and crates in the PCR and experiments

Timeframe Blue: Analog Link Green: Digital Link Yellow: AB/RF Validation or test Timeframe Forecast Definitive Version Timeframe Followed Definitive Version

Analog Link (Requirements) Use the AB/RF Miteq Lasers/Photodiodes Capability of Monitoring Photodiode and Laser Pluggable in standard crates/racks  VME interface Heat Sink required Firmware development in Visual Elite… … Using the VME code provided by AB/RF

Analog Link (Miteq Characterization) Tests done in collaboration with AB/RF Group… …Over two test board with temperature sensors Tests:  Temperature Vs Gain tests were developed in a climatic chamber  Bandwidth  Phase 40 and 10 (MHz)

Analog Link (Test's Results) From Temperature test were known:  Heat sink + air flow –  Ideal 25-30Deg (~8dB gain)  Air flow or heat sink –  extreme work (~1dB  No heat sink / No airflow –  Laser and photodiode break down >60Deg From bandwidth test were known:  Bandwidth from 30KHz to 3GHz  There is an Internal AGC  The output signal is inverted.

Analog Link (Test's Results) From Phase Noise tests were obtained:  (Table)  Low noise but higher than the old Miteq used  Noise contain high 50Hz Component. (eliminating this component the noise values are reduced around 50%)

Analog Link (The Prototype Boards)

Digital Link (Requirements) Same architecture as Analog Same or close to analog performance Increase monitoring capability  Frequency Detection  Power Monitoring & Signal detection  Laser Enable / Disable No Heat Sink Firmware development in Visual Elite… … Using the VME code provided by AB/RF

Digital Link (Lasers) 3 Digital Lasers were tested (and compared with the analog)  OCP STX 03 (155MHz)  OCP STX 24 (1.2GHz)  PHOTON MT5 343 ( obsolete 155MHz ) As Results:  OCP 24 Better skew and s2s from low freq. to 40MHz  OCP 03 Better for (out of range)

Digital Link (Photodiodes) Digital photodiode were tested  OCP SRX 03 (155MHz)  OCP SRX 24 (1.2GHz)  TRUELIGHT TRR (155MHz)  OKI OF363B-C3  LDI LPA 1000PT-D & LDI LPA 1000PT-D v2  JDSU EDR515D As Results:  OCP 24: Better for 400 and 10 MHz  Truelight: Better for 40MHz and pulse reception

Digital Link (Prototype Boards)

Software A few interface were written to control The boards:  VME Monitor for Windows and Linux in C/C++  Read Monitor (Tcl/Tk): Generic Reader  Write Monitor (Tcl/Tk): Generic Writer  ReadRXD: Control Rx_D board  ReadTXD: Control Tx_D board  ReadRFA: Control RF_RX/TX_A boards  Scan: Detect the RF boards in a crate

Software (Screenshots)

Test Beam and Link Validation Link tested in lab: Digital and analog links works in similar way and better than the old TTC system In the Test Beam (Sep 2006), in a real scenario, the Analog works more stably than the digital and the old TTC system (TTCRD12 & TTCmi)

Pricing The Digital Link is 4 times cheaper than the Analog link BoardBoard PricePrice per channel (Rx+Tx) 10 RF_RX_A RF_TX_A RF_RX_D (mixed conf: 2TRR + OCP24) 10 RF_TX_D

Review - Conclusions All the prototype boards and software developed are working and have been validated by the ESS/TTC and by the AB/RF group The digital boards need some changes that will improve their performance (changes that will be done for production)

Acknowledgments Too many people to say thanks.. Specially to:  Sophie Baron to help me in the project and choose me between the “thousands” of applications…  Christopher Parkman and Mike Clayton: to let me work in their group and “tolerate” my network problems  AB/RF group in specially to Philippe Baudrenghien to show me the Analog side of the things  And to all the ESS Group to accept me like one more in the group

Bibliography (Docs Writen) Boards user manuals  3 User manuals were written RF_A (RF_RX/TX_A boards) RF_RX_D Board RF_TX_D Board Programming user manual  5 Software manual were written Generic Readers Specific TCL/TK applications for each board Lasers and photodiode evaluation report Publication with Sophie Baron in the book of the workshop’s conference

Questions?

Many Thanks Thanks Merci Danke ObrigadoGracias Ringraziare