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Summary of Contents for BNC 106C
- Page 1 Instruction Manual Model 106C/130/155 Optical Module Berkeley Nucleonics Corporation 2955 Kerner Blvd. San Rafael, CA 94901 Ph: 415-453-9955 Fx: 415-453-9956 www.berkeleynucleonics.com...
- Page 2 WARRANTY Berkeley Nucleonics Corporation warrants all instruments, including component parts, to be free from defects in material and workmanship, under normal use and service for a period of one year. If repairs are required during the warranty period, contact the factory for component replacement or shipping instructions.
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Page 3: Table Of Contents
CONTENTS Page SECTION 1 SPECIFICATIONS Model 106C, 155 and 130 Characteristics Module Status Byte Summary SECTION 2 OPERATING INFORMATION Features General Power Up Module Installation Safety Precautions Warm Up Requirements Troubleshooting Default Settings Front Panel Description LED Indicators Connectors Rear Panel Description... - Page 4 CONTENTS SECTION 4 MAINTENANCE AND CALIBRATION Maintenance Light Output Connector Calibration General Equipment Required Procedure Module Interface DAC Calibration External Drive Discriminator CW and External Modulation Calibration Pulse Baseline Calibration Pulse Peak Calibration Pulse Dynamic Characteristics SECTION 5 PARTS LISTS AND SCHEMATICS Parts List Laser Output Board, 155-1 Module Interface Board, 6040-4...
- Page 5 CONTENTS ILLUSTRATIONS Figure No. Page Trigger and Output Pulse Timing Safety Labels Module Interface Block Diagram Laser Output Block Diagram TABLES Table No. Page Module Status Byte Summary Menu Keys for the 135/130 Module Plug-In Module Memory Map Control Signals...
- Page 6 MODEL 106C, MODEL 155 AND MODEL 130 Graphic (Model 155 & 130) The Model 106C, Model 155 and Model 130 are three in a series of plug-in modules that provide electrical and optical output pulses when installed in the Model 6040 mainframe.
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Page 7: Specifications
SECTION 1 SPECIFICATIONS MODEL 106C/155/130 CHARACTERISTICS Timing Characteristics Rep Rate: 0 Hz-100 MHz Width: 3 ns - 640 s (Pulse Mode); 3 ns (min.) at reduced amplitude. Impulses, fixed 400 ps fwhm (typical). Input Characteristics EXTERNAL DRIVE Range: dc - 300 MHz (200 MHz for zero Baseline level): specifications apply dc - 100 MHz. - Page 8 SPECIFICATIONS cont’d. Output Characteristics LIGHT OUT Wavelength: Model 106C: 1064nm ±30 nm Model 155:1550 nm ±30 nm. Model 130:1310 nm ±50 nm. Spectral Width: 2 nm rms (from 50 uW to 1 mW). Power Level: 1 mW max. (Peak or Baseline). 0 mW min.
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Page 9: Module Status Byte Summary
SPECIFICATIONS cont’d. Modes PULSE Conventional pulse generator with rate, delay, width and single/double pulse selections controlled by the 6040 mainframe. External Drive operation produces pulses corresponding in rate and duty cycle to an external pulse train. EXTERNAL MODULATION Converts digital and analog electrical signals are into their optical equivalent. -
Page 10: Section 2 Operating Information
OPERATING INFORMATION FEATURES The Model 106C, 155 and 130 plug-in modules provide 1064nm, 1550 nm and 1310 nm optical output sources for the Model 6040 Universal Pulse Generator. Accurate and adjustable outputs are available for all of the four modes in which the 6040 mainframe can operate. -
Page 11: General
General POWER UP When power is applied to the 6040 mainframe with a 106C, 155 or 130 module installed, the instrument settings from the module's memory 0 are activated. The mainframe automatically checks what type of plug-in module is in place and loads the appropriate parameters. The LCD, after showing the mainframe's software version number and performing a memory check, will display "106C Ver. -
Page 12: Default Settings
OPERATING INFORMATION cont’d The Quick Test procedure for the mainframe may be applied to the 106C/155/130 by selecting the Pulse Mode and following the test sequence using the module's LIGHT OUT connector and an optical detector in place of the mainframe's PULSE OUT. After Pulse Mode operation has been verified, the Impulse Mode can be tested. -
Page 13: Connectors
This section presents information on how to operate the Model 6040 Universal Pulse Generator with the Model 106C, 155 or Model 130 optical module installed. Only the details that are specific to the module are described. For an overall description of how to use the mainframe with plug-in modules, please refer to the 6040 manual. - Page 14 OPERATING INFORMATION cont’d Table 2-1. Menu Keys for the 133/130 Module. MODE Menu External Pulse Impulse Modulation TRIG Menu Single Cycle Internal Trigger (and Rate) External Trigger (and Threshold) External Trigger Slope External Drive (and Threshold) TIMING Menu Delay Width Single/Double Pulse LEVEL Menu Peak...
- Page 15 OPERATING INFORMATION cont’d {MODE} The Mode menu for the 106C/155/130 has all four selections available: Pulse, Impulse, CW and External Modulation. Pulse Mode can operate over the entire timing range of the 6040, producing flat- topped delayed pulses. The Delay interval, Peak level. Baseline level and pulse Width are all adjustable.
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Page 16: Remote Programming
CW Level may also be adjusted to any power level between zero and 1 mW with 5 µW resolution. {UNITS} This key is not used with the 106C/155/130 module (and has no effect). FUNCTION KEYS These keys are not used with the 106C/155/130 module (and have no effect). -
Page 17: Section 3 Theory Of Operation
SECTION 3 THEORY OF OPERATION GENERAL Module Interface Figure 3-1 shows a simplified block diagram of the Module Interface board. The path for communication between mainframe and module is via PS. The eight QAD lines and five QA lines are the bus interface lines, and a MOD DIS line is used for disabling the Output board. -
Page 18: Circuit Description
THEORY OF OPERATION The two current sources are used for different Modes. The current source on the left is used during Pulse and Impulse Modes (to supply the Peak level), and during the External Modulation Mode. This current source can be modulated from a wideband preamp which is driven by the front panel SMA connector EXT MOD. - Page 19 THEORY OF OPERATION Table 3-1. Plug-In Module Memory Map Memory Range C000-C777 Z3, I.D.ROM C800-CFFF Unused D000-D7FF Z4, Nonvolatile RAM (NVRAM) D800-DFFF D800-DFFF D800-D9FF Z5, 82C55 PPI D800 Port A D801 Port B D802 Port C D803 Control DA00-DBFF Unused DC00-DDFF Z6, 7528;...
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Page 20: Laser Output Board
THEORY OF OPERATION This includes the Modes that are valid, parameter boundaries, and the type of output that the module has (optical or electrical). It also contains the values for initializing the nonvolatile RAM. Z4 is a 2K byte nonvolatile RAM (NVRAM). It is used to save instrument settings and power-on conditions. -
Page 21: Laser Module
THEORY OF OPERATION Table 3-2 shows how these digital control signals affect the condition of the analog switches in each Mode. The switches are identified by their control terminals (e.g., Z14-9); "L" and "H" indicate low and high logic/voltage levels. By turning on and off these switches, these digital signals provide proper routing for BASELINE LEVEL and PEAK LEVEL, the analog signals that control the amplitude at the laser output. - Page 22 THEORY OF OPERATION The path of the CW OR BASELINE LEVEL signal may be followed on schematic sheet 1. First, we note that the PEAK LEVEL control voltage is inverted by Z13-1 and delivered to Z16-3 via R20. Second, we determine the status of the switches that affect the CW OR BASELINE LEVEL signal.
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Page 23: External Modulation Mode
THEORY OF OPERATION Analog Switches Z14-1 H BIAS Z14-8 L CW + EM Z14-9 H CW + EM Z14-16 H Z11-1 H IMPULSE Z11-8 H IMPULSE In summary, the PEAK LEVEL control voltage is inverted about ground by Z13-1 and also undergoes a gain reduction of six (-6 V from PEAK LEVEL becomes +1 V at Z13-1). -
Page 24: Pulse Mode
THEORY OF OPERATION Pulse Mode In Pulse Mode, two conditions exist: the circuitry involved when the Baseline level is set to zero is different from the circuits used with a nonzero Baseline. In Pulse Mode with zero Baseline, there is no optical output between pulses (during a logical "zero"... -
Page 25: Pulse Mode (Zero Baseline)
THEORY OF OPERATION PREDRIVE, the timing signal from the multiplexer (Z4), is applied (from Z3-2) to the base of predriver Q4. Q4 and Q3 are a switching pair whose current is controlled by Z2-1 and Q3. The predrive current through Q4 and 03 increases with increasing optical output and, as the current increases, the main drivers Q6 and Q7 receive larger switching voltages. -
Page 26: Laser Protection
THEORY OF OPERATION Since it is desired to stabilize the Baseline level only, a signal proportional to the duty factor is required. This signal is obtained from Z3-2 (via R163). Both signals are sent to the auxiliary feedback loop. The IMPULSE COMPENSATION and IMPULSE FEEDBACK signals (sheet 1) are combined in Z6 along with a dc level from R37 and are sent back (via Z11-3 and Z8-1) to the Baseline current source (Q1, sheet 2). -
Page 27: Section 4 Maintenance And Calibration
CALIBRATION General The calibration of the 106C/155/130 module is in two parts: the first is for setting control voltages on the Module Interface board (PCB 6040-4); the second is for setting the Laser Output board (PCB 155-1) for the correct power output and impulse characteristics and to verify the External Modulation bandwidth. -
Page 28: Procedure
MAINTENANCE AND CALIBRATION BNC terminated 30 ohm coaxial cables, 1 meter length. • Variable dc voltage source (capable of ±3 V into 30 ohms). • Single-mode optical fiber patch cord terminated with appropriate connectors.. • PROCEDURE Note: This calibration should be carried out in the order presented. -
Page 29: Cw And External Modulation Calibration
MAINTENANCE AND CALIBRATION CW and External Modulation Calibration Using the patch cord, connect LIGHT OUT to the 6100 Optical Power Meter. Set the 6100 for Average power measurement and the 0 dBm range. Set the 6040 Mode to CW and the CW level to 1.000 mW If necessary, adjust R11 (Schematic 133-31, sheet 1) to obtain a reading of 1.000 mW ±10 µW on the 6100. -
Page 30: Pulse Dynamic Characteristics
MAINTENANCE AND CALIBRATION Pulse Dynamic Characteristics Connect the 6040 TRIG OUT to the External Trigger input of the oscilloscope (bandwidth must be at least 1 GHz). Connect the 6040 LIGHT OUT to the detector (also 1 GHz). Connect the detector's output to channel A of the oscilloscope. -
Page 31: Section 5 Parts Lists And Schematics
SECTION 5 PARTS LIST AND SCHEMATICS Abbreviations Ceramic Pico farad COMP Composition Single Inline Package Dual Inline Package Tanalum ELEC Electrolytic Microhenry FAC SEL Value Set at Factory Microfarad Kilohm Working Volts Megohm Variable Metal Film Watts Mica Wire wound MONO Monolithic Ceramic --------------------------- NOTE -----------------------------... - Page 32 PARTS LIST AND SCHEMATICS 411-004 IN4152 NOT USED NOT USED NOT USED NOT USED NOT USED 412-009 IN52318 NOT USED 411-003 IN4005 411-004 IN4152 NOT USED NOT USED CR13 411-004 IN4152 110-019 0.05 µF 20% 25 VCER CR14 411-004 IN4152 110-021 0.01 µF 20% 16 VCER CR15 411-004 IN4152...
- Page 33 PARTS LIST AND SCHEMATICS 213-301 300 OHMS 5% 1/4 W COMP NOT USED 213-332 33 K 5% 1/4 W COMP NOT USED 244-035 2 K MULTITURN 222-026 110 K 1/% 1/4 W MF NOT USED 222-026 110 K 1/% 1/4 W MF NOT USED 244-011 1 K MULTITURN NOT USED...
- Page 34 R101 213-102 1K 5X 1/4 W COMP R142 222-018 249K 1% 1/4 W MF R102 213-102 1 K 5% 1/4 W COMP R143 222-018 249 K 1% 1/4 W MF R103 244-038 5 K MULTI TURN R144 222-039 1 K 1% 1 / 4 W MF R104 231-008 2 OHM 1% 10 WWW R145...
- Page 35 MODULE INTERACE BD 6040-4 649-143 122-016 10UF±10% 15 V TAN 223-010 4.7 KX9 SP RES NETWORK 122-016 10UF±10% 15 V TAN 223-016 4.7 KX9 SP RES NETWORK 122-014 33UF±10% 6 V TAN 244-011 1 K PC MT MULTITURN 122-014 33UF±10% 6 V TAN 244-011 1 KPC MT MULTITURN 110-033 0.1UF±20% 50 V CER MGNO 244-011 1 KPC MT MULTITURN...
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