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Functional Overview

This chapter provides the overview of the features provided by the SHFPPC Instrument. The first section contains the description of the functional diagram and the hardware and software feature list. The next section details the front panel and the back panel of the instrument. The following section provides product selection and ordering support.

Features

The SHFPPC Instrument consists of two or four groups of channels for operating parametric amplifiers. Each group of channels consists of Pump/Probe Tone Generation and a Readout Signal Conditioning unit processing analog signals (dark blue color), and an SHFPPC Sweeper unit that controls all tunable parameters (light blue color). Here, the Pump/Probe Tone Generation unit generates both pump and probe tones for the control and characterization of Josephson parametric amplifiers, while the Readout Signal Conditioning unit consists of an amplification stage for the measurement readout signal as well as an interferometric pump tone cancellation circuit. The interface units that connect to the front panel are depicted on the left-hand side and the units at the back panel are depicted on the right-hand side of the Figure. Arrows between the panels and the interface units indicate selected physical connections and data flow.

Figure 1: SHFPPC instrument functional diagram

Pump Tone Generation

  • Low-noise pump tone outputs, recommended frequency range 4 - 12 GHz
  • Calibrated output power, up to 20 dBm
  • Integrated probe tone, recommended frequency range 4 - 8.5 GHz, combined with pump tone on a single output

Readout Signal Conditioning

  • Low-noise readout signal amplification stage with 10 dB amplification, recommended frequency range 5 - 9 GHz
  • Interferometric pump tone cancellation, recommended frequency range 5 - 10 GHz

High-speed Connectivity

  • LAN/Ethernet 1 Gbit/s controller interface
  • USB 2.0 controller interface

Software

Front Panel Tour

The front panel SMA connectors and control LEDs are arranged as shown in Figure 2 and listed in Table 1.

Figure 2: SHFPPC Parametric Pump Controller front panel

Table 1: SHFPPC Parametric Pump Controller front panel description
Position Label / Name Description
A
Soft power button		 Power button with incorporated status LED
off
Instrument powered off
blue
  • dim: Firmware is starting
  • bright: Instrument ready and active connection over Ethernet or USB
B Channel LED Status indication for Parametric Pump Channel
off
RF Synthesizer disabled, no RF signal on Pump Out port
blue
RF Synthesizer enabled, pump tone or probe tone applied at Pump Out port
orange
RF Synthesizer enabled, in use to generate probe tone for twin channel; No RF signal applied at Pump Out port
C Signal Out Readout signal output
D Signal In Readout signal input
E Pump In External pump tone input
F Pump Out Parametric Pump Output

Back Panel Tour

The back panel is the main interface for power, control, service and connectivity to other ZI instruments. Please refer to Figure 3 and Table 2 for the detailed description of the items.

Figure 3: SHFPPC Parametric Pump Controller back panel

Table 2: SHFPPC Parametric Pump Controller front panel description
Position Label / Name Description
A AC 100 - 240 V Power inlet, fuse holder, and power switch
B Trigger In SMA: unidirectional CMOS/TTL ports for trigger input, 3.3 V
C Trigger Out SMA: unidirectional CMOS/TTL ports for trigger output, 3.3 V
D DIO 16-bit digital input/output (DIO) connector
E Maintenance Universal Serial Bus (USB) ports for maintenance → do not use for standard operation
F USB 2.0 Universal Serial Bus (USB) port for instrument control
G LAN 1GbE 1 Gbit LAN connector for instrument control
H Sync Sync Input; no user functionality
I Reference Clock Out External Reference Clock Output (10 MHz/100 MHz)
J Reference Clock In External Reference Clock Input (10 MHz/100 MHz)

Ordering Guide

Table 3 provides an overview of the available SHFPPC products and options.

Table 3: SHFPPC Instrument product codes for ordering
Product code Product name Description Field upgrade possible
SHFPPC2 SHFPPC Parametric Pump Controller 2-Channel Configuration Base instrument with 2 PPC channels no
SHFPPC4 SHFPPC Parametric Pump Controller 4-Channel Configuration Base instrument with 4 PPC channels no
Table 4: Product selector SHFPPC
Channel Feature SHFPPC2 SHFPPC4
Parametric Pump Readout Channels 2 4
  Synthesizers 2 4
  Frequency range recommended: 4-12 GHz  
Shared resources Total number of Markers/Triggers 4/4  
  ZSync capability no  
  USB 2.0 yes  
  LAN 1 Gbit/s yes