HardLabs

Pm22V

scular-HCC·DualLaserPDHDriver·Laser_Driver_v7/pm22V/pm22V.kicad_pcb

Pm22V PCB layout, top view — open source board by scular-HCC

About the Pm22V PCB

Pm22V is an open source PCB design by scular-HCC, published on GitHub under the Custom license license. It is a 2-layer board measuring 160 × 100 mm, with 28 components from 16 distinct parts.

By type, the board carries 10 capacitors, 8 resistors, 3 diodes, 2 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.

Pm22V, from the project README
From the project README

Pm22V bill of materials (BOM)

28 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
IRF540NPBF
Q1
1
IRF9540NPBF
Q2
1
1729131
Screw_Terminal_01x03
Phoenix Contact
J5
1
DIN41612_03x32_C_Split
J6
2
Heatsink Boyd 531102B02500G
HS1, HS2
1
Heatsink Boyd 6223BG (GBPC)
HS3
1
GBPC1510W
Surge Components
D1
2
1N4742A
D2, D3
2
470nF
C1, C2
4
2200uF 50V
C3, C4, C9, C10
2
1000uF 50V
C5, C6
2
2.2 uF
C7, C8
2
15
R2, R3
2
1M
R4, R5
2
100k
R6, R7
2
CRL1206-FW-R470ELF
0.47
Bourns
R8, R9

Pm22V 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.

Pm22V: common questions

How big is the Pm22V PCB?

The Pm22V measures 160 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pm22V?

28 components, from 16 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 Pm22V 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 Pm22V 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.

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