HardLabs

Dual PDH Laser driver v3

scular-HCC·DualLaserPDHDriver·Laser_Driver_v3/laser_driver_v3.kicad_pcb

Dual PDH Laser driver v3 PCB layout, top view — open source NXP board by scular-HCC

About the Dual PDH Laser driver v3 PCB

Dual PDH Laser driver v3 is an open source NXP PCB design by scular-HCC, published on GitHub under the Custom license license. It is a 2-layer board measuring 291.8 × 265.6 mm, with 197 components from 86 distinct parts.

Its main chip is the TEENSY_4.1, from the NXP family. Other key parts include the OPA192IDR, OPA551U, ADG419BRM, INA826 and OPA859xDSG. By type, the board carries 80 resistors, 36 capacitors, 30 ICs, 11 diodes, 10 transistors and 2 connectors.

It belongs with the test & measurement designs in this gallery.

From the project

Dual laster Pound-Dreaver-Hall driver setup. 1550 nm DFBs. Q=10^-5. Less than 20 GHz difference

A precision two-channel controller for 1550 nm DFB butterfly lasers — a differential optical thermometer built as a 3U Eurocard instrument.

Each channel provides low-noise constant-current laser drive, a bipolar linear TEC temperature controller, RF frequency modulation, and a synchronous-demodulation Pound–Drever–Hall lock that holds the laser to the side of an optical resonance. Lasers A and B lock to their own fringe of a shared reference cavity; the beat frequency between them, Δν = S·(TB − TA) with S ≈ 2 GHz/K, is a ratiometric measurement in which slow common-mode drift cancels.

Dual PDH Laser driver v3, from the project README
From the project README

Main components on the Dual PDH Laser driver v3

OPA192IDROPA551UADG419BRMINA826OPA859xDSGAD9833xRMAD9833xRM (ref)74AHCT125AD5064BRUZLMV7219M5SN74LVC1G3157DBVRCDCE913PWG4LT3042EMSE +12VCR2013-MI2120AD831 mixerTEENSY_4.1

Dual PDH Laser driver v3 bill of materials (BOM)

197 components, 86 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
OPA192IDR
U17, U18, U19
2
OPA551U
U20, U21
4
OPA192IDR
U22, U23, U24, U25
2
ADG419BRM
U26, U27
4
INA826
U28, U29, U32, U33
2
OPA859xDSG
U30, U31
2
AD9833xRM
U34, U39
2
AD9833xRM (ref)
U35, U38
1
74AHCT125
U36
1
AD5064BRUZ
U37
1
LMV7219M5
U40
1
SN74LVC1G3157DBVR
U41
1
CDCE913PWG4
U42
1
LT3042EMSE +12V
U43
1
CR2013-MI2120
U44
2
AD831 mixer
U45, U46
1
TEENSY_4.1
A1
4
IRLB8721PBF
Q11, Q13, Q15, Q17
4
IRF9540N
Q12, Q14, Q16, Q18
2
IRLML6344TRPBF
Q19, Q20
Show 66 more
QtyPartRefs
1
ASE-10.000MHZ-LC-T
Y1
1
10MHz Ref SMA
J2
1
Conn_02x12_Counter_Clockwise
J3
2
100nF
C_K1, C_K2
2
100nF ADC filter
C_NTC1, C_NTC2
2
2.2pF Cf
C_f1, C_f4
2
2.2pF Cf TIA
C_f2, C_f3
1
DFB1550LP #1 Socket
J_BTF1
1
DFB1550LP #2 Socket
J_BTF2
2
10k 0.1% NTC1 pullup
R_NTC1, R_NTC2
2
100R
R_S1, R_S2
2
100k PD bias
R_bias1, R_bias2
2
10k Rf
R_f1, R_f4
2
10k Rf TIA
R_f2, R_f3
4
OPA380AIDR MPD
U_TIA1, U_TIA2, U_TIA3, U_TIA4
8
BZX384-C15
D14, D15, D16, D17, D18, D19, D20, D21
2
BAT54 rev prot Vr_max=2V
D22, D23
1
BAV99
D24
2
10u (SRF>>20MHz)
L1, L2
4
100nF
C64, C65, C81, C86
6
100n
C66, C67, C80, C82, C84, C85
2
100pF NP0
C68, C69
2
10n C0G
C70, C71
2
100uF 10V
C72, C73
2
100nF X7R
C74, C75
2
Ci 1n
C76, C77
1
Cf 1p C0G 0402
C78
1
Cf 1p C0G 0402
C79
2
10n
C83, C87
1
0.1uF
C88
3
10nF
C89, C90, C91
1
4.7uF X7R
C92
1
4.7uF
C93
2
Crf 10n
C94, C95
4
1n
C96, C97, C98, C99
2
4.99k 0.1% TEC_scaler_top
R40, R44
1
3.16k
R41
6
1k
R42, R50, R55, R107, R108, R111
2
20k 0.1% TEC_scaler_bot
R43, R45
2
10R
R46, R48
2
10k
R47, R49
8
47R
R51, R52, R53, R54, R56, R57, R58, R59
2
0R
R60, R62
4
0.1R
R61, R63, R64, R65
2
200k 0.1% scaler_top
R66, R71
2
1k 0.1% scaler_bot
R67, R72
14
47R prot
R68, R69, R70, R73, R74, R75, R76, R83 +6
2
2k (trim)
R77, R78
2
10k gate
R79, R80
2
0.25R 1W
R81, R82
2
4R7 inrush limit
R86, R87
2
Ri 10k
R92, R93
2
Rp 1k
R94, R95
2
Rsum 10k
R96, R97
2
487R
R98, R99
2
Rf 8k
R100, R101
2
8.06k
R102, R103
1
50
R104
1
1M
R105
1
27k
R106
1
100k
R109
1
2M
R110
2
4.7k
R112, R113
1
6.04k
R114
1
120k 0.1%
R115
4
3.3k
R116, R117, R118, R119

Dual PDH Laser driver v3 design files

The KiCad project lives in the scular-HCC/DualLaserPDHDriver repository on GitHub; these links point at the commit this page was built from.

Dual PDH Laser driver v3: common questions

What microcontroller does the Dual PDH Laser driver v3 use?

The Dual PDH Laser driver v3 is built around the TEENSY_4.1, from the NXP family.

How big is the Dual PDH Laser driver v3 PCB?

The Dual PDH Laser driver v3 measures 291.8 × 265.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dual PDH Laser driver v3?

197 components, from 86 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Dual PDH Laser driver v3 design files?

From the scular-HCC/DualLaserPDHDriver repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Dual PDH Laser driver v3 design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Dual PDH Laser driver v3 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.

More boards in DualLaserPDHDriver

Similar boards