Davy Multi-SLED User Manual

Multi channel superluminescent diode light source

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User Manual

Multi Channel Superluminescent Diode Light Source (Multi-SLED)

Multi-SLED

Integrated Spectral Bench (ISB2)

Document # Multi_SLED_V2_ISB2_2025_01_01

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Page 1 User Manual Multi Channel Superluminescent Diode Light Source (Multi-SLED) Multi-SLED Integrated Spectral Bench (ISB2) Document # Multi_SLED_V2_ISB2_2025_01_01...
Page 2 Company Mission To establish trusted relationships with our clients by providing technical expertise, reliable products, exceptional customer service, and ongoing support. Everyone at DAYY is part of our continuous improvement culture. Company Vision To illuminate photonic solutions through continuous innovation of our own products and technology.
Page 3: Table Of Contents
4. Application Protocol Interface (API) ........................23 4.1 Serial MODBUS-RTU (USB interface/RS232) ....................23 4.2 MODBUS-TCP/IP (Ethernet interface) ......................24 4.3 Multi-SLED ISB2 Register Map ........................24 5. Technical Data ..............................25 7. Dimensions Multi-SLED............................27 8. Troubleshooting ..............................28 9.
Page 4: Description
The Multi-SLED uses DAYY’s technology of spectral stitching to provide extensive spectral coverage. This technology integrates multiple wavelengths into a single spatially coherent beam with low temporal coherence and broad spectral coverage. The Multi-SLED product lines can be spectrally tailored to suit specific application needs.
Page 5: Safety
2. Safety All statements regarding safety of operation and technical data in this user manual will only apply when the unit is operated correctly. The driver must not be operated in environments susceptible to explosion hazards. Do not obstruct the air ventilation slots. If any parts of the driver, or electronics are broken or exposed, contact DAYY Photonics technical support and do not attempt to operate the unit.
Page 6: Operation
Verify that you have received the following items within the package: 1 Multi-SLED Integrated Spectral Bench 1 Power supply. Input: AC 100-240V Output: 12V 1 Power Cord 1 USB 2.0 A to B Cable 1 Multi-SLED ISB2 Final Inspection Test Report...
Page 7: Physical Driver Functionality
The switches are labeled from 1-6 corresponding to the SLED number, with SLED 6 having the shortest wavelength and SLED 1 having the longest wavelength. Please refer to the Final Inspection Test Report included with the Multi-SLED Integrated Spectral...
Page 8 Bench for SLED numbering as well as corresponding wavelengths and maximum operating currents. When turning individual SLEDs “on” or “off” in MANUAL MODE they will be driven at their default current settings. Default current settings for MANUAL MODE can be changed through the software.
Page 9 Pin 2: RXD Recevied Data Pin 3: TXD Transmit Data Pin 5: Ground Baud Rate 115200, 1 stop bit, no parity 1: RS-232 P ABLE INOUT Pin 1: TTL Control Enable (input) Pin 2: SLED Ready (output) Pin 3: T Alarm (output) Pin 4: TTL SLED On/Off_Not (input) Pin 5: TTL GP1 (input) Pin 6: TTL GP2 (input)
Page 10 Front Panel - Light Output: The front panel includes three LEDs, vent holes and light output connector, allowing users to connect their own fiber optic cable to the ISB2; see Figure 3. The Multi -SLED comes with FC/APC as standard, but FC/PC and SMA connectors are available upon customer request.
Page 11 Back Panel - Thermal Management: Free air circulation around the rear of the unit should be maintained for good thermal performance. If the ISB2 is operated in environments over 35°C, the ISB2 should be mounted to an external heatsink. Free air circulation around the ISB2 is required when it is used without a heatsink.
Page 12: Hardware Requirements
When starting up, the software will automatically scan your computer’s ports and find the Multi-SLED ISB2. Please wait until a connection is established and the status bar in the bottom-right corner shows your connection type (USB/RS-232). Figure 6 shows the main console of the software.
Page 13 Figure 7. Based on the ISB2 model, the maximum current of each SLED will be limited and the sliders’ maximum values will be adjusted accordingly when the Multi-SLED ISB2 is connected. The center wavelength will be displayed with each SLED number.
Page 14 Current row show the monitor photodiode current. The monitor photodiodes are physically placed on the back facet of each SLED, inside the Multi-SLED 32-pin Package Optical Spectral Engine, and can be used as a reference for the light each SLED is emitting.
Page 15 Note that once Modulation is enabled, this current setting is not variable, and the user must disable modulation in order to change it. The Modulation Frequency has a default of 1kHz with a 50% Duty Cycle. Modulation frequency and/or Duty Cycle can be altered by the user by clicking the “Change” button next to the desired text field, then typing in the desired value and clicking “Save”.
Page 16 System Temperatures Heat Sink Temperature, Fan Speed (CFM) and RPM are displayed to help the user monitor the thermal management, as shown in Figure 9. 5: S IGURE YSTEM EMPERATURES ECTION Fan Controls Factory default settings will automatically control the air flow. When the unit is powered on, fan speed will default to its maximum value.
Page 17 Communications: The screen shown in Figure 12 will appear when clicking on the “Communications” button from the main console. When software loads up, the Auto-Scan function will run to find the virtual com port settings for a USB, RS232 and/or Ethernet connection. Users can manually enter the communication settings by clicking on “Autoscanning…”...
Page 18 INDOW The Communications Window shows the continuous raw data transfers from the software to your Multi-SLED ISB2 unit, and is used to monitor communications. The data transfer is represented as TX (data send) and RX (data receive) messages, accompanied by their time-stamps, see Figure 12. The Communications log can be paused by clicking “Pause,”...
Page 19 Logging: The Multi-SLED ISB2 supports continuous logging of data such as the currents, temperatures, fan flow, etc. by clicking on the “Logging” tab from the main console. The window shown in Figure 13 will open. Enter the logging file name and directory for where the data is to be stored by clicking on the “…”...
Page 20 “New Setting” field as its new default start-up setting. The new value will be stored in the Multi-SLED ISB2, and not on the user’s computer, so if the unit is powered off and taken to a different work station, the new settings will be kept as the default values when the unit is powered on again.
Page 21 SLED will be driven when the ISB2 is operated in MANUAL MODE. Note: SLEDs should be operated per manufacturer-recommended current setting provided in the Final Test Inspection Report for the Multi-SLED ISB2. Running the SLEDs at higher currents may cause damage. DAYY Photonics is not liable for damage if SLEDs are operated at higher than specified current ratings.
Page 22 About: Refer to the About section by clicking on the “About” button in the main console. The About window is shown in Figure 15. The software name and version are shown underneath DAYY Photonics logo. Based on the ISB2 model, the Capabilities column shows the functionality enabled on the driver.
Page 23: Application Protocol Interface (Api)
4. Application Protocol Interface (API) DAYY Photonics driver utilizes the MODBUS Protocol for communications. Users can find numerous detailed specifications for the protocol on the internet. This manual will only provide a high-level overview. MODBUS is a master/slave protocol and is used widely in industrial applications.
Page 24: Modbus-Tcp/Ip (Ethernet Interface)
(analogous to the Slave Address used in MODBUS-RTU over Serial). The MODBUS PDU structure is identical for both MODBUS-RTU and MODBUS- TCP/IP. 4.3 Multi-SLED ISB2 Register Map If users want to develop their own API, Multi-SLED ISB2 Register Map is available upon request. Please contact technical support: techsupport@dayyphotonics.com...
Page 25: Technical Data
5. Technical Data Parameter Symbol Symbol Condition Min. Typ. Max. Unit DRIVER POWER SUPPLY SPECIFICATIONS Input Power Supply Voltage Input Power Supply Current Input Power Supply Voltage Ripple and �� mVpp Noise CONSTANT CURRENT MODE Operating Current Range = 25˚C 0.05A = 21˚C Max.
Page 26 Parameter Symbol Symbol Condition Min. Typ. Max. Unit POWER METER Spectral Response Range λ 1870 Photosensitive Area Φ1 Power Meter Current Reading Peak Sensitivity Wavelength λp 1750 Photo Sensitivity λ= λp Typical Dark Current cm*Hz Detectivity λ= λp 2 x 10 5.5 x 10 1.5 x 10 4 x 10...
Page 27: Dimensions Multi-Sled
7. Dimensions Multi-SLED Overall dimensions for the connector, venting locations, and mounting holes.
Page 28: Troubleshooting
8. Troubleshooting If an error occurs on your unit, operate the unit with the desired SLEDs on and send diagnostic file to DAYY Photonics tech support. To send the diagnostic file, follow these steps: 1. While your unit is connected and running, click on the “About” button on the main screen to open the About window.
Page 29: Limited Product Warranty ("Wrty")
9. Limited Product Warranty (“WRTY”) DAYY Photonics Corporation (“DAYY”) products and components are warranted against defects in materials and workmanship for a period of one year (unless otherwise stated) beginning on the product shipment date. This warranty is provided only to the original end user, and is not transferrable. The warranty ceases upon transfer of the product to a new owner.
Page 30: Compliance
MBAP - MODBUS Application Protocol UI - Unit Identifier 13 Optional: Light Output Connector Multi-SLED comes with FC/APC Connector as standard. If customer requires FC/PC or SMA connector instead, please indicate on the order. 14. Contact Information DAYY Photonics Corporation...