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Summary of Contents for THORLABS LLD1530
- Page 1 LLD1530 Frequency-Locked Laser User Guide...
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Page 2: Table Of Contents
General remarks .........................13 6.1. Use of the Equipment ....................13 6.2. Maintenance and Repair ....................13 Chapter 7 Mechanical Drawing ......................14 Chapter 8 Troubleshooting .........................15 Chapter 9 Regulatory ...........................16 Chapter 10 Declaration of Conformity ....................17 Chapter 11 Thorlabs Worldwide Contacts ..................18 ... -
Page 3: Chapter 1 Warning Symbol Definitions
Frequency-Locked Laser Chapter 1: Warning Symbol Definitions Chapter 1 Warning Symbol Definitions Below is a list of warning symbols you may encounter in this manual or on your device. Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal... -
Page 4: Chapter 2 Safety
CAUTION This instrument should be kept clear of environments where liquid spills or condensing moisture are likely. The LLD1530 frequency-locked laser is not water resistant. To avoid damage to the instrument, do not expose it to spray, liquids, or solvents. -
Page 5: Chapter 3 Specifications
Constant Environmental Conditions < 0.00003 Found by measuring the beat note between two Laser Linewidth (FWHM) <3 locked LLD1530 lasers over a 10 µs duration. Side Mode Suppression Ratio (SMSR) 20 MHz Measurement Relative Intensity Noise dBc/Hz Bandwidth, 200 ms... - Page 6 Frequency-Locked Laser Chapter 3: Specifications Connectors Parameter Value Optical Fiber Connector FC/APC Digital control interface D-Sub 9 pin Female Environmental and Power Specifications Parameter Value Operating Temperature Range 10 °C - 40 °C Storage Temperature Range 0 °C - 60 °C Power requirements 100 - 240 VAC, 0.3 A, 50 - 60 Hz Fuse...
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Page 7: Graphs
The top plot shows the typical variation in the LLD1530's vacuum emission wavelength over one hour. Frequency stability data were measured using two LLD1530 lasers and a beat note approach; one LLD1530 was intentionally operated with a slightly detuned optical frequency to generate the beat note. - Page 8 LLD1530 laser reference system. Figure 3 Typical beat note spectrum between two LLD1530 frequency-locked laser sources (blue curve), plotted with a Lorentzian curve fit (red curve). The beat note was recorded over 10 µs using a 150 MHz detector. A 2.5 MHz FWHM linewidth was derived from the measurement data and the 3.6 MHz FWHM of the curve fit.
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Page 9: Chapter 4 Controls And User Interface
Frequency-Locked Laser Chapter 4: Controls and User Interface Chapter 4 Controls and User Interface The front and back panels of the instrument include instrument status indicators, controls, optical output ports and a digital I/O interface. The locations and functionality of these features are described in the following. WARNING Caution –... -
Page 10: Back Panel Features
Frequency-Locked Laser Chapter 4: Controls and User Interface 4.2. Back Panel Features Label Function Laser Interlock Jack Digital I/O Interface, Female DB9 Connector AC Power Cord Connector Page 8 STN050884-D02... -
Page 11: Digital I/O
The D-Sub 9 Pin female DIGITAL I/O interface on the rear panel can be used to operate and receive operating status information from the LLD1530. Interfacing with the instrument via this digital I/O port requires the LLD1530 to be powered on. This is done by connecting the instrument to mains power and turning the key in the key switch to position I. -
Page 12: Chapter 5 Operation
Thorlabs' LLD1530 Frequency Locked Reference Laser is a laser-diode-based, turnkey system with a vacuum emission wavelength of 1532.8323 nm. The distributed feedback (DFB) laser at the heart of the LLD1530 has a <3 MHz linewidth and a high side mode suppression ratio (SMSR) of at least 35 dB. The laser frequency is actively stabilized to a National Institute of Standards and Technology (NIST)-traceable molecular transition of acetylene ). -
Page 13: Start-Up Procedure
Note that invisible laser radiation is emitted even during a re-lock event! In rare cases when the LLD1530 is disturbed by mechanical or thermal influences the lock procedure can take up to around a minute or until the system is undisturbed again. -
Page 14: Disabling The Laser
After the laser has been powered and enabled, it can be disabled at any time by pressing the ENABLE button (F10). When the laser is disabled, the DFB laser inside the LLD1530 is turned off and hence the frequency lock will be lost. -
Page 15: Chapter 6 General Remarks
Thorlabs FCC-7020 Fiber Endface Cleaner for Patch Cables The optical connectors on the front panel may be cleaned using a 2.5 mm bulkhead cleaner such as the Thorlabs FBC1. This allows the user to clean the fiber end-face without removing it from the internal bulkhead adapter. -
Page 16: Chapter 7 Mechanical Drawing
Frequency-Locked Laser Chapter 7: Mechanical Drawing Chapter 7 Mechanical Drawing 96.1 mm 104.2 mm (3.78") (4.1") 149.8 mm (5.9") 15.2 mm (0.6") 299.9 mm (11.81") 318.2 mm (2.53") Page 14 STN050884-D02... -
Page 17: Chapter 8 Troubleshooting
Chapter 8 Troubleshooting Consulting the following may provide assistance if you experience difficulties with the LLD1530. If you have any questions, please contact your local Thorlabs Technical Support office. If the unit does not appear to turn on correctly, please check the following items: ... -
Page 18: Chapter 9 Regulatory
Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. -
Page 19: Chapter 10 Declaration Of Conformity
Frequency-Locked Laser Chapter 10: Declaration of Conformity Chapter 10 Declaration of Conformity Rev A, March 23, 2018 Page 17... -
Page 20: Chapter 11 Thorlabs Worldwide Contacts
Frequency-Locked Laser Chapter 11: Thorlabs Worldwide Contacts Chapter 11 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to- date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc. - Page 21 www.thorlabs.com...
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