Atch 2 Statement of Work Lock in Amplifier

Statement of Work
For
Lock-in Amplifier
Title: Lock-in Amplifier
Document Date: 7/27/2026.
1. Background: There are many challenges facing the implementation of quantum information systems that are affordable, portable, and robust. While there are numerous candidates for the stationary qubits found in quantum computers, the most likely candidate for transmitted or “flying” qubits is the photon. Therefore, the ability to store photons reliably for extended periods of time is necessary for the processing of photonic qubits and the establishment of entanglement between distant nodes in a quantum network. However, the process of storage will by its nature distort the retrieved photonic states and thus distort the information encoded by the photons. The Coherent Atomic Transfer (CAT) function is a framework developed for storing light pulses in a Λ-type atomic system using the phenomenon of electromagnetically induced transparency (EIT). The specific goal of this proposal is to build an experimental setup for the storage of light using EIT, which includes setting up the experiment, characterizing the alkali cells spectroscopically, and inducing EIT using a targeted set of atomic energy transitions and appropriately tuned lasers.
The product to be purchased is a commercial off-the-shelf lock-in amplifier device for the purpose of modulating photodetector output with a chopper wheel in order to suppress noise from overhead lights, allowing for accurate characterization of an alkali cell. The lock-in device will then be used to sync photodetectors to an electro-optic modulator and waveform generator for EIT laser input and output pulses. This experimental setup will also be used in the Quantum Optics Summer Lab for the purposes of exploration of sensing quantum coherence, as well as likely integration in the AFIT-OSU quantum network as a storage node for qubits over fiber. Stored light pulses will then be de-convoluted using the CAT function. 2. Scope: The vendor should provide a lock-in amplification capable device. The system must be capable of modulating and sampling fast enough to pull and resolve short pulse durations. The research objectives outlined above satisfy the following requirements outlined in Section 101 of H.R.6227 "National Quantum Initiative Act", the Air Force science and technology strategy document for 2030 and beyond, and the Department of Energy's "Blueprint for a Quantum Internet.
3. Requirements/Salient Characteristics: The following specification lists the minimum