Phase noise of an electro-optic terahertz comb

Krause, Benedikt L. (avtor), Lavrič, Andrej (avtor), Tebart, Jonas (avtor), Stöhr, Andreas (avtor), Preu, Sascha (avtor)

Photonic millimeter wave and terahertz frequency generation and detection benefit from a large tunability of several octaves as opposed to electronic frequency generation and multiplication. However, reaching multiple 100 GHz continuous tuning range while simultaneously featuring a 3-dB linewidth in the Hz range and low phase noise is still very challenging. We present an electro-optical comb driving a photomixer with potential usability as an extension module based on side-band generation by an electro-optical phase modulator. This enables a Hz-level 3-dB linewidth from microwaves to terahertz frequencies. We discuss the working principle of the mentioned electro-optical comb, characterize the phase noise of the optical subsystem up to frequencies of 40 GHz where electronic phase noise analyzers are available and draw conclusions on the phase noise at higher frequencies in the THz domain.

• Jezik: Angleški jezik
• Ključne besede: phase noise, electro-optic THz comb, THz source, photomixer, phase modulation
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 20948-20958
• Številčenje: Vol. 32, no. 12
• PID: 20.500.12556/RUL-168751
• UDK: 621.39
• ISSN pri članku: 1094-4087
• DOI: 10.1364/OE.520197
• COBISS.SI-ID: 196599299
• Datum objave v RUL: 23.04.2025

Gradivo je del revije

• Naslov: Optics express
• Skrajšan naslov: Opt. express
• Založnik: Optical Society of America
• ISSN: 1094-4087
• COBISS.SI-ID: 8636438

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: fazni šum, elektrootpični teraherčni glavnik, THz izvor, fotomešalnik, fazna modulacija