PM.SMD | Surface Mount PM Devices for Opto-Electronic Integration

QUBIG offers free-space phase modulators also as Surface-mount devices (SMD) with ultra-compact form factors. The modulators, which show an intrinsic small alignment sensitivity, are built for easy integration onto printed circuit boards (PCB) and opto-electronic setups by either soldering, gluing, or wire bonding.

Additional options for RAM suppression, frequency fine-tuning, high optical power handling, or high modulation efficiency are available.

General product overview

PM7.SMD 5 - 30 MHz	PM8.SMD 31 - 499 MHz
PM7U.SMD See details	PM8U.SMD See details	UVIS 300-400 nm
PM7V.SMD See details	PM8V.SMD See details	VIS 360 - 650 nm
PM7N.SMD See details	PM8N.SMD See details	NIR 0.6 - 1.1um
PM7S.SMD See details	PM8S.SMD See details	SWIR 1.0 - 3.0 μm

SMD Light Modulators

for ultra compact Laser systems

The union of electronics with optics and their miniaturisation plays a much bigger role than just the massive reduction in complexity, size and susceptibility in today‘s industrial plants and systems. An establishment of Quantum Technology (QT) in industry, aerospace or daily life will fail without considering the industrial implementation of those highly sensi- tive and complex systems. QUBIG offers a new family of free-space light modulators compatible with SMD mounting technology to facilitate the integration into complex systems.

SMD EOMS

The modulators are built for easy integration into electronic and optoelectronic setups. They are easy to implement on printed circuit boards (PCB) by either soldering, gluing, or wire bonding and show an intrinsic small alignment sensitivity. Additional op- tions for RAM suppression, frequency fine-tuning, high optical power handling, or high modulation efficiency are available.

**Fig. 1** | *SMD compatible phase modulators resonant at 20 MHz (right) and 6.8 GHz (left).*

SMD EOMS + DRIVER

The compact form factor and SMD mounting allow for the integration of the light modulators directly on the RF-source electronics powered by a USB connection. This package not only eliminates bulky drivers but also improves the overall efficiency since there are no transmission losses in coaxial cables for high frequencies.

**Fig. 2** | *SMD compatible phase modulators with integrated driver resonant at 20 MHz (right) and 6.8 GHz (left).*

OPTO-ELECTRONIC INTEGRATION

Ultra-compact electro-optical modulators can be integrated into robust electro-optical assemblies that offer a high degree of complexity with minimum dimensions. For instance, Fig.3 shows a compact EOM integrated inside an ultra-narrow linewidth diode laser module developed by the Ferdinand Braun Institute and Fig. 4 shows a compact Laser Conditioning Module for Fre- quency-modulation spectroscopy (LCM-FM) with an integrated SMD EOM.

**Fig. 3** | *SMD EOM integrated inside an a ultra-narrow linewidth diode laser module.*

The compact LCM-FM module (14x3.6x11cm³) as execution example for characterisation and demonstration purposes of our SMD product line, contains a tunable SMD Phase modulator working at 20 MHz to generate an error signal via FM-spectroscopy of an alkali metal (currently Cs and Rb).

**Fig. 4** | *Laser Conditioning Module for Frequency-Modulated spectroscopy.*

SMD Light Modulators (1.2 MiB)