TOPOMIR Spectroscopy and Applications

MIR Spectroscopy
MIR Integrated Photonics
Component Characterization
Quantum Technology

TOPO
Widely Tunable High-Power Continuous-Wave OPO Laser System

Integrated Tuning

A singly-resonant OPO laser system canbe tuned using a number of tuning mechanisms, see Fig. 1. In a simple photon
picture (Fig. 1b), the pump photons are
split up in a signal and an idler photon.
The sum of signal and idler frequencies
is given by the pump frequency throughenergy conservation.

Key Features· 1.45 - 4.0 µm (2500 - 6900 cm-1)· 300 GHz (10 cm-1) mode-hop-freetuning range· Narrow linewidth: 2 MHz (1·10-5 cm-1)· Hands-free motorized tuning

The temperature-stabilized nonlinear
crystal can be shifted for coarse tuning.

· Easy all-digital DLC pro control

The DFB pro seed laser provides low
noise and wide mode hop free tuning in
a compact fiber-coupled package. Idler
frequency scans of several hundred GHz
are typically accomplished without anymode hops. An etalon allows for stablesingle-longitudinal-mode selection. Theetalon mount provides tilt-tuning of theresonated signal wave, and of the idler
wave through energy conservation. Intracavity piezo tuning is used for fine tuningof the output around a target wavelength.
In case of the TOPO, all mechanisms areconveniently controlled through the DLC
pro digital laser controller in order to allow
full hands-off course and fine tuning andcomplete wavelength access. The performance of these mechanisms is given in
the table below.

FAApplications

Idler

OPO Head

Signal· MIR Spectroscopy

Pump

Pump

DFB
temperature

SignalDFB proIdler· Watt class power

CrystalpositionDLC pro

Etalonangle

CavityPiezo· Cavity ringdown· Detector Characterization

Range

Resolution

Mode-hop Free?

Intracavity Crystal position

Signal, Idler

Full System Range

1.3 THz

NoPump Laser Temperature

Pump, Idler

30 - 300 GHz*

20 MHz/mK

Yes

Intracavity Etalon Angle

Signal, Idler

2 THz

30 GHzNo

Intracavity Piezo Voltage

Signal, Idler

500 MHz100 kHz/mV

Yes* Mode-hop free. Total tuning is 700 GHz over ∆T = 35 K.

Because the TOPO tuning mechanisms
are all controlled by DLC pro, wide scanning protocols can be automated. We havetaken spectroscopy data on a sample ofC2H2 and CH4 molecules in a 20-cm-longcell at a partial pressure of 10 torr each.
The experiment was fully automated andtook 8 hours for a full gapless scan spanning 150 nm centered around 3 µm.

100

4SignalIdler

32
10Output Affected

1500

2000

Characteristic Tuning Curve

2500
3000
Wavelength [nm]

3500

4000

3360

3340

inferred peak positions
HITRAN data and error bars

Frequency [cm-1]
Peakpositions

The wide wavelength coverage and low
noise will make you explore further inmolecular and biomedical spectroscopy,
physical chemistry, and quantum technologies with the only widely-tunable MIR
laser designed with top performance andease of use in mind: the TOPO.

Tuning Method

TOPO tuning mechanisms (Figure 1b)

Absorption[%]

TOPTICA’s unique optical design enables
broadly tunable laser light. No module or
mirror exchange is necessary. Additionally,
the all-digital control electronics enable
hands-free coarse tuning, and frequency locking. A wide mode-hop-free tuning
range up to 300 GHz (10 cm-1) enables
visibility of full spectroscopic signatures.
Simultaneously, the TOPO maintains anarrow linewidth (2 MHz, 1·10-5 cm-1) giving a solution that reveals narrow atomic
and molecular features.

The full TOPTICA TOPO laser system integrates 4 key technologies (see Fig 1a): a
DFB pro seed laser, fiber amplifier, optical parametric oscillator, and DLC pro
digital control electronics, the same platform which is extensively used throughout
TOPTICA’s product lines. DLC pro allows simple hands-free operation throughtouchscreen, PC GUI interface, andthrough remote commands.

Absorption [%]· Atom & Ion Trapping

Power [W]· Microcavities

TOPO schematic overview (Figure 1a)
The revolutionary TOPO by TOPTICA
stands alone as the only fully automated,continuous-wave, singly-resonant optical parametric oscillator laser source on
the market. High resolution spectroscopy
across 1.45 – 4.0 μm (2500 – 6900 cm-1)
has never been easier.

3217,53217,03216,53108,53109,03216,03215,53215,0

100

03108,03109,53110,03110,53300

3320

Frequency [cm-1]
3280

3260

3240

3220

60
40202980

3000

Automated High Resolution Spectroscopy

3111,0Wavelength [nm]8003214,53020

3040
Wavelength [nm]306030803100

TOPO

DANGER – VISIBLE AND INVISIBLE LASERRADIATION, AVOID EYE OR SKIN EXPOSURE
TO DIRECT OR SCATTERED RADIATION,CLASS 4 LASER PRODUCT, EN60825-1:2014
VISIBLE / INVISIBLE LASER RADIATIONAVOID DIRECT EXPOSURE TO BEAM
CLASS 3B LASER PRODUCTCLASS 4 LASER PRODUCT(DIN EN 60825-1:2014)

SignalIdler

Coarse tuning
range*

1.45 - 2.07 µm

2.19 - 4.00 µm

Output Power**

2W

1W< 100 kHz

2 MHz

1 x 10-4 cm-1

< 1 GHzUp to 300 GHz****Up to 10 cm-1 (idler)

< 1.2

< 1.2

PZT modulation

PZT modulation,Pump frequency
modulation

Linewidth
Mode hop freetuning range***
Beam Quality
Factor M²**
Frequency
modulationand lockControl
interfaces

RIN Amplitude [dBc/Hz]

Laser Specifications
2500 - 4570 cm-1 (idler),
4830 - 6900 cm-1 (signal)

Frequency [Hz]Signal at 1.7 µm: RMS 0.15 %DLC pro touchscreen, PC software, Ethernet, USB, analog remote control* Course tuning is established by full automatic crystal shifting and temperature control. No optics exchange necessary33112** Specificationsvalid 1.53
22 - 2 µm, 2.2 - 3.6 µm

3*** Fine tuning is established via pump tuning (idler) and PZT tuning (signal and idler)1**** 30 GHz - 300 GHz, depending on output wavelength

3PRELIMINARY
1PRELIMINARYPRELIMINARY

2465.0
465.0

465.0

PRELIMINARY

D
D465.0C
C

50240465454560.2.0
B
B

150

61.5

44.5.0.0.0
44.5
71.9
44.5
44.5
1061.5101071.9
71.9
71.9
20.0
20.0
20.0
168.7.0 168.7
168.7
44.5
1071.920.0
168.7
TOPTICA Photonics AG · Lochhamer Schlag 19 · 82166 Graefelfing · Germany
All dimensions given in mm.

DO NOT SCALE DRAWING

THIRD ANGLE PROJECTION

T +49 89 85837-0 · F +49 89 85837-200 · sales@toptica.com · www.toptica.com
THIRD ANGLE PROJECTION
THIRD ANGLE PROJECTIONMETRICDRAWINGMETRICMETRICDRAWINGDRAWINGQTY REQD

2BR-TOPO-2021-08
22

350.0
50.0

TOPTICA
1286 Blossom Drive
NY 14564
Photonics,
TOPTICA Inc. Victor,
TOPTICA
1286
Blossom
Drive 1286 Blossom Drive
NY 14564
Photonics, Inc. Victor,
Photonics,
Inc. Victor, NY 14564

NAMES ARE FOR
REFERENCE ONLYTOLERANCES

AA50

TITLE

ASSY, TBDTOLERANCES ANGLETOLERANCES-J FASICK, 04/12/2017M.E
J FASICK, 04/12/2017
P.E.
M.E
DECIMAL
ASSY, TBD ASSY, TBD
P.E. - -ANGLE
P.E.
ANGLE
Q.E.
DECIMAL
DECIMAL
X.X± 2.0
PART NO
REV
Q.E. - Q.E. SIZE
OTHER
X.X ±± 0.30
2.0 X.X± 1°± 2.0
X.XX
SIZE PART NO
SIZE PART NO
PN TBD P1REVOTHER- OTHER D
OTHER
1°±DO 1°±X.XX
X.XX
±0.30
±0.30
TBD
P1 PN TBDNOT SCALEDRAWINGD ARE FORDTOPTICASCALE 1:2PN
1286 Blossom
X.XXX ± 0.150
OTHER
OTHER NAMES-CHKSH
OF 53 Drive
REFERENCE ONLYVictor,SH
NY SCALE
14564OF
Photonics,
Inc. 1:20.150 X.XXX± 0.150
X.XXXQTY±REQD
UNLESS SPECIFIED,DIMENSIONSARE INCHKCHKSCALESH
31:253EXCEPT AS MAY BE OTHERWISE PROVIDED BYCONTRACT, THESE DRAWINGS AND SPECIFICATIONSARE THE PROPERTY OF TOPTICA PHOTONICS, INC.
AND ARE ISSUED IN STRICT CONFIDENCE, AND SHALLNOT BE REPRODUCED, OR COPIED, OR USED AS THE
BASIS FOR THE MANUFACTURE OR SALE OF
APPARATUS WITHOUT PERMISSION.

FASICK,04/12/2017
04/12/2017MODEL J FASICK, 04/12/2017
MODELJ JFASICK,M.E50NEXT ASSYFINAL ASSYMILLIMETERS AND INCLUDE CHEMICALLYAPPLIED OR PLATED FINISHESTHIRD ANGLE PROJECTIONMETRIC DRAWING

168.7

DOSPECIFIED,NOT SCALEDRAWINGDONAMES ARE FORNAMES ARE FORUNLESSDIMENSIONS
ARENOTIN SCALE DRAWINGONLYREFERENCE ONLYMILLIMETERS AND INCLUDE CHEMICALLYJ FASICK, 04/12/2017
DFTG REFERENCEUNLESSSPECIFIED,DIMENSIONSUNLESSARE
SPECIFIED,IN
DIMENSIONS ARE INAPPLIEDOR PLATEDFINISHESTITLEMILLIMETERS AND INCLUDEMILLIMETERSCHEMICALLYANDMODEL
INCLUDECHEMICALLYFASICK,04/12/2017
04/12/2017DFTGJ FASICK, 04/12/2017
J JFASICK,DFTG
APPLIED OR PLATED FINISHESAPPLIED OR PLATED FINISHESTITLEEXCEPT AS MAY BE OTHERWISE PROVIDED BY
CONTRACT, THESE DRAWINGS AND SPECIFICATIONSEXCEPTAS MAY BEOFOTHERWISE
EXCEPTPROVIDED
AS MAYBYBEARE
THE PROPERTYTOPTICA
PHOTONICS,INC.OTHERWISE PROVIDED BYCONTRACT,THESEAND SPECIFICATIONSTHESEDRAWINGS AND SPECIFICATIONSAND
ARE ISSUEDIN DRAWINGSSTRICT CONTRACT,CONFIDENCE,
AND SHALL
AREBETHEPROPERTY OF
ARE THEPHOTONICS,
OF TOPTICA
PHOTONICS,INC.
NOTREPRODUCED,OR TOPTICA
COPIED,OR PROPERTYUSED ASINC.
THE
FINAL ASSYNEXT ASSY
AND AREIN STRICTAND
CONFIDENCE,ISSUED
IN SHALLSTRICT CONFIDENCE, AND SHALLBASISFOR ISSUED
THE MANUFACTURE
ORARESALE
OFAND
NOT BE REPRODUCED,OR COPIED,NOT BE OR
REPRODUCED,USED AS THE
OR COPIED,
OR USED
AS THEAPPARATUSWITHOUT PERMISSION.
FINAL ASSYNEXT ASSYBASIS FOR THE MANUFACTURE
BASIS
ORFOR
SALETHEOFMANUFACTUREQTY
OR SALEREQDOF
APPARATUS WITHOUT PERMISSION.
APPARATUS WITHOUT PERMISSION.

33PARTPARTNO.
NO.

150.0

61.5

102061.561.550150.0

PNTBD
TBDREVPN
P1P1

REV.0

TOLERANCES

NEXT ASSY

FINAL ASSY

X.X
X.XX

DECIMAL± 2.0± 0.30

ANGLE
± 1°

DFTG

11J FASICK, 04/12/2017

MODEL J FASICK, 04/12/2017
M.E

TITLE

P.E.

-Q.E.

-OTHER OTHER -1

ASSY, TBDJ FASICK, 04/12/2017

SIZE

DPART NOPN TBD