Your search for "sfp-1g" revealed the following:

NEW Juniper QFX-SFP-1GE-LX 1GB BASE-LX 1310nm SMF LC SFP Transceiver

SKU: NSN-7733
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper PB-4GE-TYPE1-SFP-IQ2 4x 1GB SFP IQ2 Type 1 PIC Module

SKU: NSN-2854
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco C9300L-24T-4G-E Catalyst 9300L 24x 1GB RJ45 4x 1GB SFP Switch

SKU: NSN-5301
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco A9K-48X10GE-1G-TR 48x 10GB SFP+ (Transport Optimized) Router Line Card

SKU: NSN-6643
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper EX-SFP-GE40KT13R15 1GB BASE-BX TX 1310nm/RX 1550nm SMF SFP Transceiver

SKU: NSH-6957
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco CWDM-SFP-1570 1GB BASE-CWDM SMF 1570nm LC SFP Transceiver

SKU: NSH-3901
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco DWDM-SFP-3112 1GB BASE-DWDM 1531.12nm SMF LC SFP Transceiver

SKU: NSN-9106
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper QFX-SFP-1GE-LX 1GB BASE-LX 1310nm SMF LC SFP Transceiver

SKU: NSB-3311
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco C9300-48S-E Catalyst 9300 48x 1GB SFP 1x Expansion Module Slot Switch

SKU: NSB-7030
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Juniper EX-SFP-GE40KT13R15 1GB BASE-BX SMF SFP Transceiver

SKU: NSN-6019
Condition: New
Shipping: Overnight Options
Warranty: 365 days