02 - Specifications .pdf

Requirements / Specification Document

TITLE: Rydberg Laser System

Requesting Laboratory / Division / Group:

Communications Technology Laboratory Radio Frequency Technology Division Radio Frequency Fields Group (672.02)

General Statement of Need:

The RF Fields Group 672.02 requires a 780 nm single frequency diode laser capable of delivering 2 Watts or more along with a 480 nm laser with an output of at least 1 Watt. The high power 780 nm laser will enable cold atom trapping for Rubidium atoms, and the 480 nm laser allows excitation to Rydberg states for detecting blackbody radiation. These two laser systems will work with each other and the existing Toptica Photonics laser systems in the laboratory.

Items and Ancillary Services:

Item 1: Amplified Diode Laser for High-power 780 nm Quantity: 1 Specifications: 1.1 Narrow-linewidth external cavity diode laser source, which is amplified via an integrated tapered amplifier in Master Oscillator Power Amplifier (MOPA) design, capable of 4 W optical power.

1.2 Full coarse tuning must cover 765 – 795 nm.

1.3 Output power: >3 W over 775-785nm range.

1.4 Linewidth: ≤ 50 kHz.

1.5 Mode-hop free tuning range > 30 GHz.

1.6 Output beam quality M2< 2.

1.7 Option for Optical Isolator with >60 dB isolation.

1.8 Fiber coupling of outputs

1.9 Option for software-based atomic reference locking

1.10 Controllable via computers by TCP/IP or USB, with free APIs for

LabView and Python.

1.11 Utilize ultra-stable mirrors and solid metal machined housing.

1.12 Low noise, low drift, and high resolution current, temperature and piezo drivers

1.13 Compatible with existing Toptica Photonics laser systems and controls.

Item 2: Amplified and Frequency-Doubled Laser System for 480 nm Quantity: 1 Specifications: 2.1 Internal grating-stabilized external-cavity diode laser (ECDL) source at 960 nm.

2.2 Internal Tapered Amplifier chip and corresponding beam-

shaping optics.

2.3 Non-linear crystal to generate the desired frequency at 480 nm via second-harmonic generation.

2.4 Full coarse tuning must cover 479–488 nm

2.5 Output power typ. 1 W.

2.6 Linewidth: ≤ 100 kHz.

2.7 Mode-hop free tuning range > 15 GHz.

2.8 output beam quality M2 < 1.2.

2.9 Fiber coupling of outputs

2.10 Option for internal Auto-alignment

2.11 Option for EOM phase-modulation for a locking signal in the non-linear cavity.

2.12 Option for fast analog feedback for linewidth reduction.

2.13 Option for locking to external cavity reference via Pound-

Drever-Hall technique.

2.14 Controllable via computers by TCP/IP or USB, with free APIs for

LabView and Python.

2.15 Utilize ultra-stable mirrors and solid metal machined housing

2.16 Low noise, low drift, and high-resolution current, temperature and piezo drivers.

2.17 Compatible with Toptica Photonics laser systems and controls

Item 3: Optical Isolator (780 nm) Quantity: 1 Specifications: 3.1 Provide >60 dB of optical isolation.

3.2 Transmission > 80%.

3.3 Integrated into laser head

Item 4: Fiber-Coupling Ports (780 nm) Quantity: 1 Specifications: 4.1 Able to monitor frequency via the pre-amplified beam (first port).

4.2 Primary laser output must be fiber coupled with >50%

efficiency. (Second port).

4.3 Includes a low-power single-mode polarization maintaining FC-

APC fiber patch cable.

4.4 Includes a high-power single-mode polarization maintaining FC-

APC fiber patch cable.

Item 5: Auto-Lock Software (780 nm) Quantity: 1

Specifications: 5.1 Take in an atomic saturated spectroscopy signal.

5.2 Digital feedback control over two laser parameters.

5.3 Computer control via a GUI.

5.4 Automatic PID setting optimization

Item 6: Fiber-Coupling Ports (480 nm) Quantity: 1 Specifications: 6.1 Primary output of 1 W at 480 nm must be fiber-coupled.

6.2 A polarization-maintaining FC APC fiber patch cable.

Item 7: Pound-Drever-Hall Module (480 nm) Quantity: 1 Specifications: 7.1 Pound-Drever-Hall Signal and Demodulation electronics.

7.2 Modulation at 5 MHz or 25 MHz.

7.3 Adjustable phase from 0 – 360 degrees.

7.4 Internal demodulation.

7.5 2 Channels, reference output.

Item 8: Fast Analog Control Module (480 nm) Quantity: 1 Specifications: 8.1 Analog PID regulator with < 10ns signal delay.

8.2 3 “I” stages, 2 “D” stages.

8.3 Remote control through TCP/IP: PC-CUI or command interface.

8.4 Two high-speed differential inputs.

8.5 Two feedback channels.

Item 9: Electro-Optic-Modulator for SHG stage (480 nm) Quantity: 1 Specifications: 9.1 EOM module enables locking without scanning amplitude or frequency.

Item 10: Auto-Lock Software (480 nm) Quantity: 1 Specifications: 10.1 Take in an atomic spectroscopy signal.

10.2 Digital PID feedback to two laser parameters.

10.3 Computer control via a GUI.

10.4 Automatic PID setting optimization

Service Requirements / Item Specifications:

Section Requirements/Specifications Planning Considerations ☒ N/A

☐ List any visits required to allow potential vendors to see site specific constraints.

[Explain Requirements.] ☐ US citizen required on-site (foreign nationals require pre-registration 30 days prior to visit.)

☐ Vendor Representative On-Site more than three (3) days.

☐ Other Considerations:

[List other considerations to ensure an accurate quote.] Shipping & Delivery ☐ N/A

Shipping Address:

☒ NIST-Boulder

ATTN: Matt Simons, 672.02 325 Broadway Boulder, CO 80305

Shipping Criteria:

☒ Partial Delivery Acceptable

☐ [Enter Shipping and Delivery information by item.] ☐ Direct Delivery to Building Required [Explain Need for Requirement]

☐ Building has Loading Dock Containerization Preference: [Enter Container Type] Other Requirements:

[List Any Other Requirement] Delivery Date Criteria:

☒ Delivery of Goods, Installation, and Training shall be competed no later than: 24 Weeks After Release of Order ☐ Delivery No Earlier Than: Click or tap to enter a date.

☐ Other: [List other shipping, delivery or special requirements.] [List Other Shipping, Delivery or Special Requirements.] Electronic Media ☐ N/A

[Enter Electronic Media Requirements by Item.]

☒ Software ☐ Electronic Manuals ☐ License Key ☐ Other:

[List Any Other Electronic Media Requirements] ☐ Email address for Software Delivery:

[Enter Address]

Installation ☐ N/A

[Enter Installation Requirements by Item]

☒ Vendor Technician on Site ☐ Rigging ☐ Uncrating / Unpackaging

☐ Removal of Packaging Material ☐ Equipment Set Up ☐ Start-Up Services ☐ Turnkey Installation ☐ Other:

[Enter Details]

NOTE:

When installation is required, TPOC shall be the coordination point.

Facility / Utility Considerations ☒ N/A

[List Site Specific Utility Considerations by Item] ☐ OFPM Work Order Numbers

[List Work Order Numbers] ☐ Power Available Voltage: [Enter voltage] (V) Maximum Current: [Enter max current draw] (A) Phase: [Choose Phase] Frequency: [Typically 60Hz] (Hz) NEMA Plug Type: [Enter Plug Type] (i.e.: NEMA L5-20P) Environment: [Choose Environment] Other Power Considerations:

[List Any Other Power Considerations.] ☐ Utility Connections:

[List Relevant Available Utilities, Pressure(s) and Flowrate(s).] ☐ Other Considerations:

[List Other Considerations to Ensure an Accurate Quote.] Warranty ☐ N/A

Base Manufacturer Warranty is acceptable

[If you require an Extended Manufacturer Warranty, describe the warranty requirements per item.]

What is included?

☐ Labor ☐ Parts ☐ Travel ☐ Cost and Liability for Returns ☒ Other Laser Diode ☒ Warranty Length: 1 year or 3000 hours operation Training ☐ N/A

[Training Requirements (Who, When, What, Where)] ☒ On-Site

Is Travel Required: YES

☐ Off-Site Location: [Enter Location(s)] ☐ Number of Trainees: [Enter Number of Trainees] Scope of Training ☒ Operations ☒ Maintenance ☐ Troubleshooting ☒ Safety ☐ Other [Enter Other Scope Requirements] ☐ Training materials to be provided:

[Describe Requirements] ☐ Other [Enter Other Training Requirements] NOTE: When training is required, TPOC shall be coordinator.

Inspection and Acceptance ☐ N/A

[Inspection Requirements Per Item (Who, When, What, Where)] ☐ On-Site

[Inspection Requirements Per Item] ☐ Government Acceptance Expected to Not to Exceed 7 Business Days ☒ Government Acceptance Expected to Exceed 7 Business Days Acceptance relies on installation and training time after delivery ☐ Inspection and Acceptance Plan:

[Explanation] ☐ Other:

[Enter Other Requirements] Maintenance ☒ N/A

[Describe Maintenance Requirements Per Item] Service Plan Length: [i.e. 3 - Years]

What is Included?

☐ Labor ☐ Spare Parts ☐ Consumables ☐ Travel

☐ Cost and Liability for Returns ☐ Software Updates ☐ Manuals l

☐ Other [Enter Other Requirements] ☐ Requirements:

[Enter Requirements] (i.e.: On-Site Within 72 hours, etc.)

☐ 1 Option Period ☐ 2 Option Periods ☐ 3 Option Periods ☐ 4 Option Periods (Maximum)

Government Furnished Material / Equipment ☒ N/A

[List Any Government Furnished Material / Equipment Per Item] ☐ Samples for Testing

☐ Government Equipment which will leave Government Site (TPOC must coordinate with Division Property Custodian)

Description: [Enter Description] Serial Number: [Enter Serial Number]

NIST Property Number: [Enter NIST Property Number] ☐ Other:

[Enter Other Details] Travel ☒ N/A

[Describe any Travel Requirements Per Item] ☐ Explain:

[Enter Justification / Requirement] ☐ Other:

[Enter Other Requirements]