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Summary of Contents for Elforlight Spot Series
- Page 1 Spot Series Lasers (Short Pulse Optical Technology) Elforlight Ltd Nene House Drayton Way Daventry Northants NN11 8EA Tel +44 1327 300069: Fax +44 1455 552974 www.elforlight.com SPOT V2I6 Manual.docx 12/01/2018...
- Page 2 NOTICE Elforlight Ltd. has made every attempt to ensure that the information in this document is accurate and complete. Elforlight Ltd. assumes no liability for errors, or for any incidental, consequential, indirect or special damages, including, without limitation, loss of use, delays or lost profits or savings, arising from the use of this document, or the product which it accompanies.
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Page 3: Table Of Contents
Contents 1. Basic User Manual 1.1. System Description 1.2. Laser safety 1.3. Recommended safety precautions during laser operation 1.4. System handling, mounting and heat-sinking 1.5. Basic Operation Connections Start-up procedure 1.6. Operation with power variation 2. User Guide: SPOT Power Supply 2.1. -
Page 4: System Description
1.1. System Description The SPOT laser systems consist of a laser head with a separate power supply unit. The power supply unit contains the drive circuits for the pump laser diode and the temperature control of the laser system, as well as the DC supplies for these modules and to supply the HV for the Pockels Cell. -
Page 5: Laser Safety
Classification Elforlight SPOT series lasers are classified as class 4 Lasers as defined by BS EN 60825-1:1994 and by the United States Centre for Device and Radiological Health (CDRH) 21 CFR Ch. 1 subsection 1040. This designates potential danger of eye or skin damage by exposure to direct or scattered radiation. -
Page 6: Recommended Safety Precautions During Laser Operation
Suitable eye protection should be worn at all times whilst laser output is possible. Contact Elforlight for advice on suitable eye protection products. The laser beam path should be terminated with a non-reflecting beam stop. Beam paths should be enclosed where possible, and should not be at eye level if practical. -
Page 7: System Handling, Mounting And Heatsinking
FORCE MAY INVALIDATE ANY WARRANTY. 1.5. Basic Operation The SPOT series Diode Pumped Laser Systems are designed for simple, user-friendly control with the minimum of user defined parameters. SPOT lasers are designed as fixed power level devices under automatic operation, or power can be varied by adjusting the pump diode current via RS232 interface. - Page 8 Operation: The SPOT laser executes a start-up procedure during which the output power will vary. During this sequence, the front panel LED emission indicator flashes at 0.5 Hz. Only when the LED is on continuously is the laser stabilised and ready for use. Before this, lower or higher powers may be observed from the laser.
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Page 9: Operation With Power Variation
NOTE (1) if the system is powered down even momentarily at any time, when the system is powered up subsequently the system will automatically revert to the cold start sequence. NOTE (2) during the ‘ramp’ and ‘stabilisation’ operation phase the laser output power will vary significantly from the specified output power. - Page 10 2. SPOT Power Supply The SPOT supply also contains: An OEM 18-04 Controller A triple rail DC supply for the above A 5V DC supply for the high voltage switch in the HV module A further adjustable DC supply to drive the high voltage supply in the HV module A cooling fan Interconnecting wiring to bring limited functionality of the 18-04 supply to the front panel...
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Page 11: Front Panel
2.1. Front panel Emission indicator A yellow LED. Flashes during warm up, continuously illuminated when lasing possible. Key switch The key switch enables laser output. See discussion of start-up sequence for details. HV adjust potentiometer (if fitted). Adjusts the high voltage applied to the Pockels Cell to allow operation over a wide range of repetition rates. -
Page 12: Rear Panel
2.2. Rear panel Mains inlet The mains inlet is a standard IEC connector. A suitable mains cable is usually supplied with the laser, as appropriate to the local supply. The mains inlet is fused and switched. Fuse rating is 5 Amps, slow blow (T). RS232 cable Connects laser PSU to serial (COM) port of computer. -
Page 13: Rs232 Commands
2.3. SPOT Laser RS232 Commands Allows User to change laser diode current (Iset), and thus laser power Increment Iset parameter by one Decrement Iset parameter by one Request status Request software version number RS232 protocol: 9600 baud 1 start bit, 8 data bits, no parity, 1 stop bit No hardware handshaking No software handshaking RS232 Cable wiring:...
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