 |
Ultraviolet to Infrared Picosecond Diode Laser Heads Voted Top Ten at CLEO 2000 |
LDH 375 to 1550 |
Laser Head Specifications (typical values)
| Beam Parameters |
|
| Optics focus length |
f' = 4.5 mm |
| Numerical aperture |
0.55 |
| Typical divergence |
Theta parallel 0.32 mrad |
| (with optics) |
Theta perpendicular 0.11 mrad |
| Polarisation |
typ. linear, perpendicular to the longer axis of the elliptical beam |
| Polarisation degree |
> 90% |
| Sidemode suppression ratio (SMSR) |
<0.01 |
| |
|
| Cooling |
|
| Peltier cooling stability |
better than 1 K for ambient temperature between 15°C and 30°C |
| |
|
| Dimensions |
|
| Cooled |
110 × 75 × 60 mm (l × w × h) - See layout |
| Cooled with fibre coupling |
145 × 75 × 60 mm (l × w × h) - See layout |
| Uncooled |
25 × 76 mm (diameter × length with collimator) - See layout |
| Uncooled with fibre coupling |
25 × 106 mm (diameter × length with collimator) - See layout |
| |
|
| Spectral width |
approx. 2-8 nm for wavelengths < 900 nm |
| |
approx. 10-20 nm for wavelengths > 900 nm |
| |
<1 nm in cw operation |
| |
|
| Power stability (cooled) |
|
| 12 hour, Delta T (ambient) <3 K |
1 % RMS |
| |
3 % Peak to Peak |
Beam Shape and Fibre Coupling
All
laser heads emit a collimated elliptical beam with typical dimensions
of 1.5 × 3.5 mm. They can be optionally fitted with single mode,
polarisation maintaining single mode or multi mode optical fibres
through appropriate fibre couplers. Different fibre connectors at the
fibre output are available (FC/PC, FC/APC and SMA). For details, please
see the corresponding webpage.
Available wavelengths (pulsed mode, LDH-P Series)
These laser heads can only be driven either by the PDL 800-B, PDL 800-D, PDL 808 "Sepia" or PDL 828 "Sepia II" driver units.
| |
|
Power Adjust = Low (Narrow Pulse) |
Power Adjust = High (Wide Pulse) |
Wavelength
nm ( ± 10) |
Type |
Pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
Pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
| 375 |
LDH-P-C-375 |
< 70 |
0.3 |
-- |
< 300 |
1.0 |
-- |
| 375 |
LDH-P-C-375B |
< 70 |
0.3 |
-- |
< 300 |
3.0 |
-- |
| 405 |
LDH-P-C-405 |
< 70 |
0.8 |
-- |
< 300 |
1.0 |
-- |
| 405 |
LDH-P-C-405B |
< 70 |
1.0 |
-- |
< 300 |
3.0 |
-- |
| 405 |
LDH-P-C-405M |
< 70 |
2.5 |
-- |
< 600 |
20.0 |
-- |
| 440 |
LDH-P-C-440 |
< 90 |
0.3 |
-- |
< 300 |
1.0 |
-- |
| 440 |
LDH-P-C-440B |
< 70 |
0.3 |
-- |
< 500 |
3.0 |
-- |
| 440 |
LDH-P-C-440M |
< 70 |
3.0 |
-- |
< 500 |
20.0 |
-- |
| 470 |
LDH-P-C-470 |
< 90 |
0.3 |
-- |
< 300 |
1.0 |
-- |
| 470 |
LDH-P-C-470B |
< 90 |
0.3 |
-- |
< 500 |
3.0 |
-- |
| 485 |
LDH-P-C-485 |
< 90 |
0.3 |
-- |
< 500 |
2.0 |
-- |
| 635 |
LDH-P-635 |
< 90 |
0.3 |
0.6 |
< 400 |
2.5 |
4.0 |
| 640 |
LDH-P-C-640B |
< 90 |
0.7 |
1.5 |
< 400 |
4.5 |
9.0 |
| 655 |
LDH-P-650 |
< 70 |
0.4 |
0.9 |
< 400 |
3.0 |
6.0 |
| 660 |
LDH-P-660 |
< 90 |
0.5 |
1.0 |
< 500 |
5.0 |
10.0 |
| 670 |
LDH-P-670 |
< 70 |
0.3 |
0.7 |
< 300 |
1.0 |
2.0 |
| 665 |
LDH-P-670B |
< 90 |
0.3 |
0.7 |
< 400 |
2.0 |
4.0 |
| 690 |
LDH-P-690 |
< 70 |
0.5 |
1.0 |
< 400 |
4.0 |
8.0 |
| 705 |
LDH-P-705 |
< 70 |
1.2 |
2.5 |
< 400 |
5.0 |
10.0 |
| 735 |
LDH-P-730 |
< 130 |
0.3 |
0.6 |
< 400 |
1.7 |
3.5 |
| 757 |
LDH-P-760 |
< 90 |
0.4 |
0.9 |
< 300 |
3.0 |
6.0 |
| 785 |
LDH-P-780 |
< 70 |
0.5 |
1.0 |
< 500 |
5.0 |
10.0 |
| 806 |
LDH-P-810 |
< 90 |
0.4 |
0.9 |
< 500 |
5.0 |
10.0 |
| 830 |
LDH-P-830 |
< 70 |
0.3 |
0.6 |
< 300 |
4.0 |
8.0 |
| 835 |
LDH-P-840 |
< 90 |
1.0 |
2.0 |
< 750 |
6.0 |
12.0 |
| 850 |
LDH-P-850 |
on request
|
| 905 |
LDH-P-905 |
< 90 |
1.5 |
3.0 |
< 70 |
4.0 |
8.0 |
| 930 |
LDH-P-930 |
< 120 |
0.7 |
1.5 |
< 500 |
10.0 |
20.0 |
| 952 |
LDH-P-950 |
< 90 |
0.2 |
0.4 |
< 400 |
2.0 |
4.0 |
| 975 |
LDH-P-980 |
< 90 |
0.6 |
1.2 |
< 750 |
10.0 |
20.0 |
| 1025 |
LDH-P-1025 |
on request
|
| 1060 |
LDH-P-1060 |
< 90 |
0.5 |
1.0 |
< 550 |
10.0 |
20.0 |
| 1310 (± 25 nm) |
LDH-P-1310 |
< 50 |
0.01 |
0.02 |
< 400 |
0.5 |
1.0 |
| 1550 (± 30 nm) |
LDH-P-1550 |
< 50 |
0.01 |
0.02 |
< 400 |
0.5 |
1.0 |
Option "B": High Power version
Option "C": Laser head with thermoelectric cooler, mandatory for some laser heads, optional for all other laser heads
Option "M": Transversal multi mode structure, reduced coupling efficiency into single mode fibres
All measurements may be subject to a 10% calibration error.
The
two power adjustment levels specified here refer to the same laser
head. These levels can be adjusted using the corresponding driver (PDL 800-B, PDL 800-D, PDL 808 or PDL 828).
The 'Low' adjustment is the best choice for shortest pulses and is
usually reached close to the lasing threshold. The 'High' adjustment is
used to achieve highest pulse power at moderate pulse length and
corresponds to the maximum intensity setting of the driver.
Available wavelengths (dual mode: cw and pulsed, LDH-D Series) 
These laser heads can only be driven by the PDL 800-D or the PDL 828 "Sepia II" driver.
| |
|
|
Power Adjust = Low (Narrow Pulse) |
Power Adjust = High (Wide Pulse) |
Wavelength
nm ( ± 10) |
Type |
CW Power
mW |
Pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
Pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
| 375 |
LDH-D-C-375 |
10 |
< 70 |
0.3 |
-- |
< 300 |
3.0 |
-- |
| 405 |
LDH-D-C-405 |
20 |
< 70 |
1.0 |
-- |
< 300 |
3.0 |
-- |
| 405 |
LDH-D-C-405M |
400 |
< 70 |
2.5 |
-- |
< 600 |
20.0 |
-- |
| 440 |
LDH-D-C-440 |
20 |
< 70 |
0.3 |
-- |
< 500 |
3.0 |
-- |
| 440 |
LDH-D-C-440M |
400 |
< 70 |
3.0 |
-- |
< 500 |
20.0 |
-- |
| 470 |
LDH-D-C-470 |
10 |
< 90 |
0.3 |
-- |
< 500 |
3.0 |
-- |
| 485 |
LDH-D-C-485* |
10 |
< 90 |
0.3 |
-- |
< 500 |
2.0 |
-- |
| 640 |
LDH-D-C-640 |
20 |
< 90 |
0.7 |
1.5 |
< 400 |
4.5 |
9.0 |
| 660 |
LDH-D-C-660 |
30 |
< 70 |
0.7 |
1.5 |
< 500 |
4.5 |
9.0 |
| 670 |
LDH-D-C-670 |
15 |
< 70 |
0.4 |
0.8 |
< 600 |
4.0 |
8.0 |
| 690 |
LDH-D-C-690 |
20 |
< 70 |
0.5 |
1.0 |
< 500 |
4.0 |
8.0 |
| 730 |
LDH-D-C-730 |
8 |
< 120 |
0.3 |
0.7 |
< 800 |
1.7 |
3.5 |
| other wavelengths are available upon request |
*different coupling efficiency into optical fibres for pulsed and cw operation due to astigmatism
Option "C": Laser head with thermoelectric cooler
Option "M": Transversal multi mode structure, reduced coupling efficiency into single mode fibres
All measurements may be subject to a 10% calibration error.
The
two power adjustment levels specified here refer to the same laser
head. These levels can be adjusted using the corresponding driver (PDL 800-D or PDL 828).
The 'Low' adjustment is the best choice for shortest pulses and is
usually reached close to the lasing threshold. The 'High' adjustment is
used to achieve highest pulse power at moderate pulse length and
corresponds to the maximum intensity setting of the driver.
Available wavelengths - narrow spectral bandwidth
These laser heads can only be driven either by the PDL 800-B, PDL 800-D, PDL 808 "Sepia" or PDL 828 "Sepia II" driver units.
| Wavelengths |
Power Adjust = Low (Narrow Pulse) |
|
Power Adjust = High (Wide Pulse) |
Central
nm |
Variation
nm |
Spectral FWHM
nm |
Pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
Pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
| 772 |
±3 |
<1 |
<120 |
1.2 |
2.5 |
<350 |
3.5 |
7.0 |
| 784 |
±3 |
<0.3 |
<100 |
0.9 |
1.6 |
<500 |
4.0 |
8.0 |
| 852 |
±3 |
<0.3 |
<90 |
2.0 |
3.5 |
<350 |
5.0 |
9.0 |
| 860 |
±3 |
0.2 |
<90 |
1.2 |
2.0 |
<400 |
8.0 |
15.0 |
| 1062 |
±3 |
0.4 - 0.8 |
<120 |
0.7 |
1.4 |
<400 |
5.0 |
10.0 |
| 1275 |
±7 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1300 |
±7 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1310 |
±20 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1325 |
±7 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1349 |
±7 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1417 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1490 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1510 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1530 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1550 |
±3, ±20 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1570 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1590 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| 1610 |
±3 |
0.2 |
<100 |
0.01 |
0.03 |
<400 |
0.5 |
1.0 |
| Available upon request: 763, 780, 923 and 937 nm (± 3 nm) / pigtailed FBG-diodes: 976 and 1064 nm |
All measurements may be subject to a 10% calibration error. Please call for details and availability.
Available wavelengths - short pulses (on selection)
These laser heads can only be driven either by the PDL 800-B, PDL 800-D, PDL 808 "Sepia" or PDL 828 "Sepia II" driver units.
Wavelength
nm (+/-10) |
typ. pulse FWHM
ps |
Average Power
mW (@ 40 MHz) |
Average Power
mW (@ 80 MHz) |
| 655 |
54 |
0.4 |
0.9 |
| 670 |
39 |
0.3 |
0.7 |
| 690 |
54 |
0.5 |
1.0 |
| 785 |
54 |
0.5 |
1.0 |
| 830 |
44 |
0.3 |
0.7 |
All measurements may be subject to a 10% calibration error. Please call for details and availability.
Pulse-to-pulse jitter
| The
image on the right shows a typical measurement result of the
pulse-to-pulse jitter. In this case the measurement result is 2.6 ps. |
 |
A range of sub-nanosecond pulsed LEDs is also available e.g. for time-resolved fluorescence experiments not requiring coherence.
All
Information given here is reliable to our best knowledge. However, no
responsibility is assumed for possible inaccuracies or ommisions.
Specifications and external appearences are subject to change without
notice.
© PicoQuant GmbH, 1998 - 2006
last updated 06.10.2008
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