TA Deepstar® – Diode Lasers with Infinite Modulation Depth
Modulated diode lasers with 100% modulation depth for scientific and OEM use
Bluephoton® TA Deepstar® Series – 375 nm – 488 nm
Greenphoton® TA Deepstar® Series – 515 nm
Redphoton® TA Deepstar® Series – 635 nm – 1060 nm
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Specifications TA Deepstar®-Models |
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Blue- / Greenphoton® TA Deepstar® |
Redphoton® TA Deepstar® |
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Wavelengths & Powers |
Single-Mode (SM): |
Single-Mode (SM): |
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Beam diameter |
1.25mm (1/e²) +/- 0.25mm |
1.25mm (1/e²) +/- 0.25mm |
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Beam quality M² |
<1.2 (SM) |
<1.2 (SM) |
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Astigmatism (corrected) |
<0.2*ZR |
<0.2*ZR |
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Beam ellipticity |
<1.1:1 (SM) |
<1.1:1 (SM) |
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Polarisation |
>100:1 vertical |
>100:1 vertical |
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Power stability |
<0.5% / h |
<0.5% / h |
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Noise 0Hz-100MHz |
<0.5% peak<>peak (CW) |
<0.5% peak<>peak (CW) |
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Modulation speed |
Analog: up to 15MHz @ -3dB |
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Modulation input signals |
Analog: 0...1V / 50 Ohm (15MHz) or |
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Rise- and falltime |
Analog: <25ns |
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Digital Modulation depth |
> 2.500.000:1 |
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Supply voltage |
24VDC, 2 Amp. |
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Features |
Safety- Interlock |
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Options |
LDM.COL - collimator objective |
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The diode lasers of the Bluephoton® / Greenphoton® / Redphoton® TA Deepstar® Series are temperature-stabilized lasing diode modules with modulation inputs for up to 150 MHz digital modulation (On/Off) and up to 15 MHz analog modulation (power control) with 100% modulation capability. Since diode lasers, which are capable of modulation, are usually modulated between the laser threshold and their maximum power, diode lasers also still emit some laser power and/or fluorescent light in the “Off moment”. Since this residual lighting cannot be tolerated for applications such as confocal microscopy or microlithography, the TA Deepstar® technology was developed, which eliminates this residual light and enables modulation depths of > 2.500.000:1. The digital modulation input can be implemented either as 0 … 1 V / 50 Ohm RF input or as TTL input. The digital trigger level (switching threshold) is programmable in 1 millivolt increments. The analog modulation input can be adapted to customer preferences both in its voltage, as well as in its impedance value. (0 … 5 V, standard 1 kOhm). The extremely short rise and fall times of the digital modulation of <1 ns (nanoseconds) enable precise switching of the laser light in extremely fast processes. Through the possibility of fast analog modulation with up to 15 MHz @ -3 dB, the laser can furthermore carry out very fast power variations. As a result of their intelligent laser controller with interface RS-232, these lasers can be integrated seamlessly into applications and controlled. Through the standardized Command Line Interface (CLI), you have at all times full control of all parameters of the laser, such as e.g. laser diode temperature, laser powers and currents, operating modes and lots more. The systems consist of a laser head and a laser controller in the EMC-screened modular housing with 24 V DC supply voltage input, according to industrial standard. As in case of all lasers of the Bluephoton® and Redphoton® Series, the laser head can be very simply adapted to customer specifications by the use of the modular principle.
Press Releases
DEEPSTAR® - Diode lasers with infinite modulation depth
Contact
Omicron-Laserage Laserprodukte GmbH
Raiffeisenstrasse 5e
63110 Rodgau-Dudenhofen
Germany
Tel:
+49-(0)6106-8224-0
Fax:
+49-(0)6106-8224-10
email:
mail@omicron-laser.de