Vescent SLICE-DHV Quick Start Manual Download

Page: 20 / 20

Last update: 2021/08/26 14:26

slice:dhv

https://www.vescent.com/manuals/doku.php?id=slice:dhv

https://www.vescent.com/manuals/

Printed on 2021/08/30 08:42

API

Please contact

sales [at] vescent [dot] com

for information.

Maintenance

There are no user-serviceable parts inside this instrument. Refer all repairs to the manufacturer. Work
performed by persons not authorized by Vescent Photonics may void the warranty.

Located in power receptacle on rear panel, bubble 5 in

ﬁgure 3

Subject to change without notice

see note in

table 6

as set by User

User-serviceable fuse: T 2.0 A L 250V

See

table 4

for acceptable input ranges

0-30 Hz

0-200 V

From:

https://www.vescent.com/manuals/

- Product Manuals

Permanent link:

https://www.vescent.com/manuals/doku.php?id=slice:dhv

Last update: 2021/08/26 14:26

Summary of Contents for SLICE-DHV

Page 1: ...ble DC bias voltage When the Gain is set to 20 the modulation input signal allows access to the full range of the SLICE DHV 0 200 V When the Gain is set to 1 the SLICE DHV has better noise performance than when the Gain is set to 20 The SLICE DHV is not recommended for applications that require a large signal bandwidth greater than 20 Hz deﬁned for modulation amplitudes more than 10 V Model No SLI...

Page 2: ...ion to manual instructions for optimum results and in order to not damage the device Tab 1 List of warning symbols The SLICE DHV High Voltage Ampliﬁer is intended for among other tasks driving tuning elements in external cavity diode lasers When using lasers particular care must be given to avoid radiation exposure hazards Tab 2 Description The SLICE DHV ﬁgure 1 is a high bandwidth low noise high ...

Page 3: ...be operated in a laboratory environment as described in table 3 Parameter Rating Environmental Temperature 15 C T 30 C Environmental Humidity 60 Environmental Dew Point 15 C Maximum AC Line Input Current 2 A Tab 3 Absolute Maximum Ratings The SLICE DHV will accept input line voltages within the ranges shown in table 4 The SLICE DHV is powered by Vescent s proprietary power supply technology which ...

Page 4: ... connections to it Always power down the SLICE DHV completely before making connections to a laser Never connect or disconnect the SLICE DHVs to from a laser with the SLICE DHV energized As with any ﬂexible instrumentation improper usage can cause irreparable damage to the device Please take note of all warnings and cautions Speciﬁcations Performance 2 Parameter Value Number of Channels 2 Control ...

Page 5: ...for their PZT Be aware that the high voltage output can be driven to a minimum of 10 V when applying a modulation Tab 6 Load Capacitance Approximate Bandwidth 1 nF 200 kHz Tab 7 Approximate bandwidth of SLICE DHV as a function of load capacitance Front Panel An image of the front panel of the SLICE DHV is shown in ﬁgure 2 The functions and connections are as follows Channel indicator touch for Cha...

Page 6: ...tion 10 Visual output voltage indicator 11 Signal monitor outputs 12 Fig 2 Front of SLICE DHV Rear Panel An image of the rear panel is shown in ﬁgure 3 The functions and connections are as follows Serial Number location 1 High Voltage output CH 2 BNC 2 Modulation input CH 2 SMA 3 Main On Oﬀ power switch 4 Fuse location 5 5 AC line power in 6 6 Output trigger BNC 7 Input trigger BNC 8 USB port for ...

Page 7: ...up to 200 V without an input signal It is advised that you power oﬀ the device before making connections to it Getting Familiar with the SLICE DHV The SLICE DHV is designed to be operated from the touch screen GUI and or serial commands delivered from a Windows 10 PC over the USB connection on the back of the chassis Both the touch screen and serial commands allow access to all of the SLICE DHV fu...

Page 8: ... by touching the home button ﬁgure 5 in the upper left corner of the touch screen From the Home screen summary control over each of the two channels is possible including setting the bias voltage From the Home screen you can edit the control parameters for each channel In general the status displayed in an editable ﬁeld is the current status not the result of touching the button Touch the button t...

Page 9: ...ters I O Button Fig 8 I O button Enters the screen for programming the front panel I O System Settings Button Fig 9 System settings button Enters screen for system operational settings brightness volume etc Entering Values In most instances there are two methods for entering parameter values the physical rotary knobs on the front panel and the pop up keypad on the touch screen When using the knobs...

Page 10: ...move to the left Changes made with the rotary knobs take eﬀect immediately Touch the yellow bordered ﬁeld again to exit the edit mode Fig 10 Knob adjustment of Bias Voltage set point for CH 1 Keypad If you touch an editable ﬁeld for a longer period of time 3 s a numeric keypad will appear as seen in ﬁgure 11 You can enter in the full value of the desired parameter with this keypad Changes entered ...

Page 11: ...elete button Deletes last character entered Enter Fig 15 Enter button Accepts parameter edits and exits keypad Extendable Legs The SLICE DHV has four extendable legs ﬁgure 16 Extending the front legs allows easy viewing from above ﬁgure 1 and extending the rear legs ﬁgure 17 allows easy viewing from below for instance when placed on a shelf above a laser table Extending both the front and rear leg...

Page 12: ... faster transient behavior of the output These displays oﬀer quick visual identiﬁcation of the output voltage and can help visualize drift in feedback control applications Setting the Gain on the Input Signal The Gain on the input control signal can be set to either 1 or 20 When the gain is 1 the input modulation signal is directly summed with the DC Bias to produce the high voltage output This mo...

Page 13: ...maximum for their device From the Home screen touch the CH 1 or CH 2 ﬁeld to see ﬁgure 18 Touch the Voltage Limit V ﬁeld to set the maximum voltage output The bar graph output indicator on the Home screen will scale automatically with the maximum voltage set point This voltage limit circuit in the DHV hardware limits the voltage including the modulation input to the user deﬁned limit when using th...

Page 14: ...n input signal It is advised that you power oﬀ the device before making connections to the high voltage output To turn on turn oﬀ the high voltage output touch the HV OFF HV ON ﬁeld on the Home screen Internal Ramp Function The SLICE DHV has an internal ramp function for sweeping the voltage output The ramp is a sawtooth wave To set the sweep rate 7 of the ramp touch the CH 1 or CH 2 ﬁeld to see ﬁ...

Page 15: ...ve Sweep Tune mode active at any given time When in Sweep Tune mode The rotary knob edit method is not available for the DC Bias and Range ﬁelds Only keypad editing is allowed DC Bias and Range readouts for the channel react to rotary knob actions while the Settings menu is displayed but no rotary edit is in progress on that menu Modulating the SLICE DHV Output The user can input an analog voltage...

Page 16: ...ar panel trigger input and trigger output Touching the I O icon on the control bar will open a screen similar to that seen in ﬁgure 22 Fig 22 I O programming window Programmable Input From ﬁgure 22 it is possible to assign the front panel input as the source of the modulation control input signal normally assigned to the SMA connector on the rear panel of the SLICE DHV Touching the A Input ﬁeld di...

Page 17: ...such have slower less quiet performance than the rear panel connections CH 1 can only be assigned to Input 1 and Output A Likewise CH 2 can only be assigned to Input 2 and Output B Triggering Input Trigger The HV output can be remotely activated and deactivated by a TTL trigger introduced at the back panel of the SLICE DHV bubble 8 ﬁgure 3 If the Trigger In on the back side of the SLICE DHV is act...

Page 18: ...icon on the control bar to see the I O screen ﬁgure 22 Touch the blue ﬁeld labeled Trigger Out for the selection screen in ﬁgure 26 and select the ramp from which channel the trigger out signal shall be derived The end of the ramp is in sync with the falling edge of the trigger Only a single Channel may be chosen for outputting a trigger at any given time Fig 26 Trigger Out is in sync with CH 2 ra...

Page 19: ...ports Select either 50 Ω or 1 MΩ For most applications of the SLICE DHV a 1 MΩ impedance should be chosen SLICE Firmware From time to time Vescent will upgrade the ﬁrmware for controlling the SLICE DCC The procedure to upgrade the SLICE DHV ﬁrmware is given here Using the PC Host GUI Coming soon please check back later Firmware Update From time to time Vescent will upgrade the ﬁrmware for controll...

Page 20: ...airs to the manufacturer Work performed by persons not authorized by Vescent Photonics may void the warranty 1 Located in power receptacle on rear panel bubble 5 in ﬁgure 3 2 Subject to change without notice 3 see note in table 6 4 as set by User 5 User serviceable fuse T 2 0 A L 250V 6 See table 4 for acceptable input ranges 7 0 30 Hz 8 0 200 V From https www vescent com manuals Product Manuals P...

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